9a-2+12a-4=20a+5

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Solution for 9a-2+12a-4=20a+5 equation: 



9a-2+12a-4=20a+5

We move all terms to the left:

9a-2+12a-4-(20a+5)=0

We add all the numbers together, and all the variables

21a-(20a+5)-6=0

We get rid of parentheses

21a-20a-5-6=0

We add all the numbers together, and all the variables

a-11=0

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

a=11

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