-4.5a+20=3.5a+28

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Solution for -4.5a+20=3.5a+28 equation: 



-4.5a+20=3.5a+28

We move all terms to the left:

-4.5a+20-(3.5a+28)=0

We get rid of parentheses

-4.5a-3.5a-28+20=0

We add all the numbers together, and all the variables

-8a-8=0

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

-8a=8

a=8/-8

a=-1

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