Question

I NEED HELP AND FAST! Consider the following pair of equations: y = x + 4 Y = -2x - 2 Explain how you would solve the pair of equations by substitution. Explain your answer

Answer 1

Using substitution:

y=x+4 —(1)
y=-2x-2 —(2)
From (1):
x=y-4–(3)

Substitute (3) into (2)

-2(y-4) -2 =y
-2y+4-2 =y
3y=2
y=2/3

Substitute y=2/3 into (3):
x =(2/3)-4
=10/3