3a+12=2a+22=180

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Solution for 3a+12=2a+22=180 equation: 



3a+12=2a+22=180

We move all terms to the left:

3a+12-(2a+22)=0

We get rid of parentheses

3a-2a-22+12=0

We add all the numbers together, and all the variables

a-10=0

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

a=10

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