Question

Enter the solution of the system of equations below as an ordered pair. Use the "/" symbol as a fraction bar if necessary.
y+2x=8
8y+8x=16

Answer 1

multiply the first row by then you can subtract that whole row from the second.

Answer 2

what number do i multiply on the first row? do i mutilpy the equation by 8x?

Answer 3

no by 4. You want to do this because you want to cancel an x or a y and to do this you need the same number of x or y.

In this case I picked x

you want the 2x in the first equation to be the same as 8x. So what number would you need to multiply 2x to get 8x? 4