2(a-6)+a=18

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Solution for 2(a-6)+a=18 equation: 



2(a-6)+a=18

We move all terms to the left:

2(a-6)+a-(18)=0

We add all the numbers together, and all the variables

a+2(a-6)-18=0

We multiply parentheses

a+2a-12-18=0

We add all the numbers together, and all the variables

3a-30=0

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

3a=30

a=30/3

a=10

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