Question

Y = x − 4
-
y = 4x + 2
It system of equations

Answer 1

(- 2, - 6 )

Explanation:

y = x - 4 → (1)

y = 4x + 2 → (2)

substitute y = 4x + 2 into (1)

4x + 2 = x - 4 ( subtract x from both sides )

3x + 2 = - 4 ( subtract 2 from both sides )

3x = - 6 ( divide both sides by 3 )

x = - 2

substitute x = - 2 into either of the 2 equations and solve for y

substituting into (1)

y = - 2 - 4 = - 6

solution is (- 2, - 6 )