3a+8a=+7-a

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Solution for 3a+8a=+7-a equation: 



3a+8a=+7-a

We move all terms to the left:

3a+8a-(+7-a)=0

We add all the numbers together, and all the variables

3a+8a-(-1a+7)=0

We add all the numbers together, and all the variables

11a-(-1a+7)=0

We get rid of parentheses

11a+1a-7=0

We add all the numbers together, and all the variables

12a-7=0

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

12a=7

a=7/12

a=7/12

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