11a+11=9a-7

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



11a+11=9a-7

We move all terms to the left:

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

We get rid of parentheses

11a-9a+7+11=0

We add all the numbers together, and all the variables

2a+18=0

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

2a=-18

a=-18/2

a=-9

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