5x-8y = 25
-x+4y = -7

This is what I did:

5x-8y =25
-2x+8y = -14
_____________

x = 11/3??

Is this right? What are the next steps and how would you write this? :confused:

yes 11/3 is correct for x value. Now you must sub this value into one of the equations to get the y value.

Ok, thanks. But now if I plug into the first equation it looks like this:

5(11/3) - 8y = 25

What do I do now?

Multiply out the brackets and solve...

Just solve for y in that new equation the same way you solved for x before.

Just solve for y in that new equation the same way you solved for x before.

Not exactly the same. Capuchin was correct by saying just multiply out the brackets and solve. Post your answer and we'll tell you if its right

I got -10/12? Is the answer 11/3, -10/12

Yes but remember that -10/12 reduces to -5/6

Good Job!

Great.. Thanks for all your help..

if the perimeter of the rectangle is t units and the area is 2t+5 squre units,what is the value of x?

Can anyone help me with my this que...

if the perimeter of the rectangle is t units and the area is 2t+5 squre units,what is the value of x?

You should post your question under your own new thread. Your question has nothing to do with elimination, and the thread is also a year and a half old.

2x-3y=-11
3x+4y=16

I got the answer is x= 3/6

Sigh COOLIOZ, have you read the previous posts? Especially that of morgaine?


You should post your question under your own new thread. Your question has nothing to do with elimination, and the thread is also a year and a half old.

DANNYSENDIN, your answer is wrong. X = 4/17.

Yeah, thanks folks for wasting my time reading through this entire thread yet again.

Sigh.

and substitute 11 in equation (1)

5x-8y=25
5(11)-8y=25
-8y=25-55
-8y=-30
-8
y = 3.75

People, read the previous posts please. Problem solved already.

THREAD CLOSED