SOLUTION: Solve the equation using inverse operations to isolate the variable. 7a+9=30

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Question 356981: Solve the equation using inverse operations to isolate the variable.
7a+9=30
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
7a+9=30
7a+9-9=30-9
7a=21
multiply by 1/7
7a*1/7 = 21*1/7
a= 3
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