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Junior Member
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Jun 13, 2012, 01:21 PM
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7x=3x-80
How do u do it and check it?
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BossMan
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Jun 13, 2012, 01:26 PM
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Please clarify your question.
What are you trying to do ?
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Junior Member
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Jun 13, 2012, 01:28 PM
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Originally Posted by qwertyuioop
how do u do it and check it?
I have 2 solve the equation and check my answer.
And find what x is!
Thanks if u answer it!
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BossMan
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Jun 13, 2012, 01:29 PM
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What have you done so far.
Remember you do the same action on BOTH sides..
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Junior Member
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Jun 13, 2012, 01:33 PM
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7x=3x-80
7((times) how do u write times besides x)-3x+80=0
(7-3)x+80=0
4x+80=0
now the q is hoe do I continue it?
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BossMan
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Jun 13, 2012, 01:40 PM
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So you are here
Just take 80 from both sides and then you'll see what to do next..
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Junior Member
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Jun 13, 2012, 01:42 PM
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hu I don't get that so u add 4x+80??
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BossMan
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Jun 13, 2012, 01:44 PM
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You want to move the 80 to the left in the form
so you get
What's next ?
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Junior Member
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Jun 13, 2012, 01:49 PM
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So then u divide 80 divided by 4 and u get -20??
If it correct thanks sooooo much :)
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BossMan
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Jun 13, 2012, 01:50 PM
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Do you see how that worked ?
Same action on both sides..
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Junior Member
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Jun 13, 2012, 01:50 PM
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Yes thxn so much!
Can u also help me w/ another problom?
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BossMan
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Jun 13, 2012, 01:51 PM
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Lets see what we can do then..
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Junior Member
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Jun 13, 2012, 01:56 PM
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kk the next one is
5(2x-3)=6x=9
I have so far is..
5(2x-3)=6x=9
10x-15-6x-9=0
10x-24-6=0
10x-6x-24=0
4x-24=0
4x=24
x=6
is that correct??
if it is thanks soooooo much u rock I have a math final tom and u helped me a lot! :) <3
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BossMan
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Jun 13, 2012, 01:57 PM
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5(2x-3)=6x=9 this is incorrect as there's two = signs.
what should the second one be ?
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Junior Member
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Jun 13, 2012, 02:00 PM
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I don't know but how would u figure it out?
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BossMan
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Jun 13, 2012, 02:02 PM
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Well reread your work book ;)
If it's + then your working is dead right..
Does it make sense for you now ?
What to try another..
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Junior Member
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Jun 13, 2012, 02:04 PM
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Yes it is a + srry about that but thanks so much you ill ask you another one soon k thanks so much I apreaciate it :) <3
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Junior Member
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Jun 13, 2012, 02:22 PM
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so here's another one...
2(4c-7)=8c+14
8c-14-8c+14
8c-8c-14+14
= 0
so the answer is 0?
is it right?
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BossMan
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Jun 13, 2012, 02:24 PM
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No need to post it here.
Keep the problems in the same place ;)
Makes it easier for my old brain to work on...
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Junior Member
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Jun 13, 2012, 02:26 PM
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Kk lol
Wait what do u mean "Keep the problems in the same place "?
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