3a=18-7a

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Solution for 3a=18-7a equation: 



3a=18-7a

We move all terms to the left:

3a-(18-7a)=0

We add all the numbers together, and all the variables

3a-(-7a+18)=0

We get rid of parentheses

3a+7a-18=0

We add all the numbers together, and all the variables

10a-18=0

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

10a=18

a=18/10

a=1+4/5

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