Question

elimination 4x - 7y = 3
x - 7y = -15

Answer 1

Do you understand how to substitute?

Answer 2

yeh

Answer 3

Okay, firstly, you want one equation as either Y or X by itself.

Answer 4

If you do that part, i'll then explain the next step.

Answer 5

okay wat the next step

Answer 6

write the equation you've got for your isolated variable in here.

Answer 7

is that right how i solve for y

Answer 8

- 7y + - 7y is not zero and 4x + x is 5x

Answer 9

You need a variable to cross out when you add down. Try multiplying one of the equations by a certain number so that one variable crosses out when you add down.

Answer 10

could u show me the step please @Rachel98

Answer 11

Okay, here is an example problem I'll draw it.