4a+a/2=81

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Solution for 4a+a/2=81 equation: 



4a+a/2=81

We move all terms to the left:

4a+a/2-(81)=0

We multiply all the terms by the denominator


4a*2+a-81*2=0

We add all the numbers together, and all the variables

a+4a*2-162=0

Wy multiply elements

a+8a-162=0

We add all the numbers together, and all the variables

9a-162=0

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

9a=162

a=162/9

a=18

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