Question 173162:
Linear ststems
solve using substitution
y=3-2x
y=5+2x
Answer by tutorcecilia(2152)   (Show Source):
You can put this solution on YOUR website! Substitute one y-equation for the other. In other words, set the equations equal to each other
5+2x=3-2x
Simplify and solve for the x-value
5-3=-2x-2x
2=-4x
-2/4=-4x/4
-2/4=x
Reduce the fractio to lowest terms
-1/2=x
Check by plugging -1/2 back into the equals
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