Question

If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the first equation is substituted into the second equation.-x + 5y = 12x + 4y = -4 (1 points)
Answer

2(5y - 1) + 4y = -4

2(-5y + 1) + 4y = -4

2x + 4(-5y + 1) = -4

2x + 4(5y - 1) = -4

Answer 1

A

Answer 2

I got B?

Answer 3

-x + 5y = 1
5y -1 = x
Substitute this expression of x in the other equation...
By the way. you are again representing them in compound form which is wrong!!

Answer 4

I dont mean to:(

Answer 5

This is how it's presented to me

Answer 6

Is it the same website?