SOLUTION: Solve the system of equations by the substitution method. { The solution is?

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Question 915005: Solve the system of equations by the substitution method.
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The solution is?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
y=2x%2B9
y=7x+10 |Substitute for y
2x + 9 = 7x + 10
-1 = 5x
-1/5= x