7=-9a+8a

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Solution for 7=-9a+8a equation:



7=-9a+8a
We move all terms to the left:
7-(-9a+8a)=0
We add all the numbers together, and all the variables
-(-1a)+7=0
We get rid of parentheses
1a+7=0
We add all the numbers together, and all the variables
a+7=0
We move all terms containing a to the left, all other terms to the right
a=-7

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