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y = x + 4
y = −2x − 2

Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.

Respuesta :

MrGumby
x = -2
y = 2

You can get this by setting the two different y's equal to each other and solving for the x value. 
substitute y 
−2x − 2= x + 4
-2x-x=4+2
-3x=6
x=6/(-3)=-2
Y = x + 4, y=-2+4=2
(-2,2)

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