Right, now,

1400(4a+b) / 196?

Then, why did you tell me that:



?

If you did what you just did to 14 up there, you'd have:



:eek:

So, some confusion from your part? :confused:

So it should be 1400(4a+b) / 14

Yes, now you got it.

And what can you do now? Do you see why I chose to multiply both sides by 14? You can now reduce the fraction.

Just like you reduce 200/2 to 100/1 to finally 100.

So its (4a+b) / 100?

Try again...

(100)(4a+b)?

Right! :)

Now let's do another one, still to solve this problem.



Can you divide both sides by 100? :)

126=(1)(4a+b)?

Good! Now, save this for later. The other one now.



Can you try putting it in the form of the one you just did?

can you show me the final step for 126 = (1)(4a+b)?
so that the other one I know how to do.

the other part is 112 = (1)(6a+b)

Quote:

---

Originally Posted by henrypoo

the other part is 112 = (1)(6a+b)

---

Geesh, it's only now that I notice that you made a wrong calculation earlier, 9000*14 = 126,000, not 12,600.

Not quite. I get:

1120 = 6a + b

(after distributing 1 into the brackets)

Okay, now we have:

1260 = 4a + b
1120 = 6a + b

We can get a and b from there. Subtract both equations:

Code:

---

1260 = 4a + 1b
1120 = 6a + 1b -
    =  a +  b

---

sorry sorry. To sum up the other question. I have done the 2 equation.

0= 4a+b -126
0= 6a+b - 112

from the above I can find a and b using stimultaneuos equation?

Right, a correction is to be made through, it's 1260 and 1120 and one last thing, you posted in the wrong thread :p

Ok, I'm moving those posts.