a+a/2=180

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Solution for a+a/2=180 equation: 



a+a/2=180

We move all terms to the left:

a+a/2-(180)=0

We multiply all the terms by the denominator


a*2+a-180*2=0

We add all the numbers together, and all the variables

a+a*2-360=0

Wy multiply elements

a+2a-360=0

We add all the numbers together, and all the variables

3a-360=0

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

3a=360

a=360/3

a=120

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