16-12a=-13a+9

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Solution for 16-12a=-13a+9 equation: 



16-12a=-13a+9

We move all terms to the left:

16-12a-(-13a+9)=0

We get rid of parentheses

-12a+13a-9+16=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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