SOLUTION: Solve the system by substitution. y=2x+4 y=-1/2x+3/2

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Question 176008: Solve the system by substitution.
y=2x+4
y=-1/2x+3/2
Found 2 solutions by checkley75, tran3209:
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
y=2x+4
y=-1/2x+3/2
2x+4=-1/2x+3/2
2x+1/2x=3/2-4
2.5x=-2.5
x=-2.5/2.5
x=-1 ans.
y=2*-1+4
y=-2+4
y=2 ans.
Proof:
2=-1/2*-1+3/2
2=+1/2+3/2
2=4/2
2=2

Answer by tran3209(100) About Me  (Show Source):
You can put this solution on YOUR website!
2x+%2B4+=+%28-x%2B3%29%2F2
4x+%2B8+=+-x%2B3+ multiply both sides by 2
5x+=+-5+ add x to both sides and subtract both sides by 8
x+=+-1