a-7+4a=8+2a

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Solution for a-7+4a=8+2a equation: 



a-7+4a=8+2a

We move all terms to the left:

a-7+4a-(8+2a)=0

We add all the numbers together, and all the variables

a+4a-(2a+8)-7=0

We add all the numbers together, and all the variables

5a-(2a+8)-7=0

We get rid of parentheses

5a-2a-8-7=0

We add all the numbers together, and all the variables

3a-15=0

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

3a=15

a=15/3

a=5

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