4-2a=-7

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Solution for 4-2a=-7 equation: 



4-2a=-7

We move all terms to the left:

4-2a-(-7)=0

We add all the numbers together, and all the variables

-2a+11=0

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

-2a=-11

a=-11/-2

a=5+1/2

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