3.2-0.5a=-2.8

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Solution for 3.2-0.5a=-2.8 equation: 



3.2-0.5a=-2.8

We move all terms to the left:

3.2-0.5a-(-2.8)=0

We add all the numbers together, and all the variables

-0.5a+6=0

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

-0.5a=-6

a=-6/-0.5

a=+12

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