-3=0.5a

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Solution for -3=0.5a equation: 



-3=0.5a

We move all terms to the left:

-3-(0.5a)=0

We add all the numbers together, and all the variables

-(+0.5a)-3=0

We get rid of parentheses

-0.5a-3=0

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

-0.5a=3

a=3/-0.5

a=-6

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