-3=4-a

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Solution for -3=4-a equation: 



-3=4-a

We move all terms to the left:

-3-(4-a)=0

We add all the numbers together, and all the variables

-(-1a+4)-3=0

We get rid of parentheses

1a-4-3=0

We add all the numbers together, and all the variables

a-7=0

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

a=7

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