-5.5-2.5a=3(5a+4)

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Solution for -5.5-2.5a=3(5a+4) equation: 



-5.5-2.5a=3(5a+4)

We move all terms to the left:

-5.5-2.5a-(3(5a+4))=0



We calculate terms in parentheses: -(3(5a+4)), so:

3(5a+4)

We multiply parentheses

15a+12

Back to the equation:

-(15a+12)



We get rid of parentheses

-2.5a-15a-12-5.5=0

We add all the numbers together, and all the variables

-17.5a-17.5=0

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

-17.5a=17.5

a=17.5/-17.5

a=-1

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