SOLUTION: please help me solve 9x+72=5y -6x-3y=-9 solving by substitution

SOLUTION: please help me solve 9x+72=5y -6x-3y=-9 solving by substitution

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Question 963945: please help me solve
9x+72=5y
-6x-3y=-9
solving by substitution
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Solve the 2nd eqn for y, then sub for y in the 1st one.

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