a-4=-4a

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Solution for a-4=-4a equation: 



a-4=-4a

We move all terms to the left:

a-4-(-4a)=0

We get rid of parentheses

a+4a-4=0

We add all the numbers together, and all the variables

5a-4=0

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

5a=4

a=4/5

a=4/5

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