Question

Use substitution to solve the linear system of equations.

y= x - 2

2x + 4 =y


(-6,8)

(6,8)

(-6,-8)

(6,-8)

pls help A$AP

Answer 1

(- 6, - 8 )

Explanation:

Given the 2 equations

y = x - 2 → (1)

2x + 4 = y → (2)

Substitute 2x + 4 = y into (1)

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

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

x = - 6

Substitute x = - 6 into (1) for corresponding value of y

y = - 6 - 2 = - 8

Solution is (- 6, - 8 )