7=-9a-10+11a

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Solution for 7=-9a-10+11a equation: 



7=-9a-10+11a

We move all terms to the left:

7-(-9a-10+11a)=0

We add all the numbers together, and all the variables

-(2a-10)+7=0

We get rid of parentheses

-2a+10+7=0

We add all the numbers together, and all the variables

-2a+17=0

We move all terms containing a to the left, all other terms to the right

-2a=-17

a=-17/-2

a=8+1/2

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