6a+7+a=18

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Solution for 6a+7+a=18 equation: 



6a+7+a=18

We move all terms to the left:

6a+7+a-(18)=0

We add all the numbers together, and all the variables

7a-11=0

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

7a=11

a=11/7

a=1+4/7

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