Question

If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to y from the first equation is substituted into the second equation.

2x – y = –4
5x – 6y = 12

Here are the choices

A)5(2x + 4) – 6y = 12
B)5x – 6(2x + 4) = 12
C)5x – 6(–2x – 4) = 12
D)5(–2x – 4) – 6y = 12

Answer 1

B)5x – 6(2x + 4) = 12

Answer 2

B
y=2x+4
5x-6(2x+4)=12

Answer 3

Thank you both! :)