2a=18-7a

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Solution for 2a=18-7a equation: 



2a=18-7a

We move all terms to the left:

2a-(18-7a)=0

We add all the numbers together, and all the variables

2a-(-7a+18)=0

We get rid of parentheses

2a+7a-18=0

We add all the numbers together, and all the variables

9a-18=0

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

9a=18

a=18/9

a=2

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