(6+a)+(3a)=86

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Solution for (6+a)+(3a)=86 equation: 



(6+a)+(3a)=86

We move all terms to the left:

(6+a)+(3a)-(86)=0

We add all the numbers together, and all the variables

(a+6)+3a-86=0

We add all the numbers together, and all the variables

3a+(a+6)-86=0

We get rid of parentheses

3a+a+6-86=0

We add all the numbers together, and all the variables

4a-80=0

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

4a=80

a=80/4

a=20

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