Question

Given the system of equations.



Which of the options represents the resulting equation after an equivalent expression for y is substituted into the second equation. { -4x + y = 3
{2x - y = 12
-4 x + 4 x - 3 = 3
-4(4 y + ) + y = 3
2x - (4 x + 3) = 12
2 (4 x + 3) - y

Answer 1

From -4x + y = 3, solve for y: y = 4x + 3. Substitute into 2x - y = 12 to get

2x - (4x + 3) = 12.

(This is the correct option.)