SOLUTION: Am I asking this correctly? The directions say: Use the substitution method to solve the linear system. Problem: 1. y = x + 2 2x + y = 8

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Am I asking this correctly? The directions say: Use the substitution method to solve the linear system. Problem: 1. y = x + 2 2x + y = 8       Log On


   

Question 120020: Am I asking this correctly? The directions say: Use the substitution method to solve the linear system.
Problem:
1. y = x + 2
2x + y = 8

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
y = x + 2
2x + y = 8
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Solve both for "y":
y = x+2
y = -2x+8
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Substitute "x+2" in place of "y" in the 2nd equation:
x+2 = -2x+8
3x = 6
x=2
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Substitute into y = x+2 to solve for y:
y = 2+2 = 4
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Cheers,
Stan H.