-7=a+5-4a

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Solution for -7=a+5-4a equation: 



-7=a+5-4a

We move all terms to the left:

-7-(a+5-4a)=0

We add all the numbers together, and all the variables

-(-3a+5)-7=0

We get rid of parentheses

3a-5-7=0

We add all the numbers together, and all the variables

3a-12=0

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

3a=12

a=12/3

a=4

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