9-3(9+2)=7+a

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Solution for 9-3(9+2)=7+a equation:



9-3(9+2)=7+a
We move all terms to the left:
9-3(9+2)-(7+a)=0
We add all the numbers together, and all the variables
-(a+7)+9-311=0
We add all the numbers together, and all the variables
-(a+7)-302=0
We get rid of parentheses
-a-7-302=0
We add all the numbers together, and all the variables
-1a-309=0
We move all terms containing a to the left, all other terms to the right
-a=309
a=309/-1
a=-309

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