a+2a=156

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Solution for a+2a=156 equation: 



a+2a=156

We move all terms to the left:

a+2a-(156)=0

We add all the numbers together, and all the variables

3a-156=0

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

3a=156

a=156/3

a=52

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