a+a/2=90

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Solution for a+a/2=90 equation: 



a+a/2=90

We move all terms to the left:

a+a/2-(90)=0

We multiply all the terms by the denominator


a*2+a-90*2=0

We add all the numbers together, and all the variables

a+a*2-180=0

Wy multiply elements

a+2a-180=0

We add all the numbers together, and all the variables

3a-180=0

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

3a=180

a=180/3

a=60

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