-55=-5(4+a)

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Solution for -55=-5(4+a) equation: 



-55=-5(4+a)

We move all terms to the left:

-55-(-5(4+a))=0

We add all the numbers together, and all the variables

-(-5(a+4))-55=0



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

-5(a+4)

We multiply parentheses

-5a-20

Back to the equation:

-(-5a-20)



We get rid of parentheses

5a+20-55=0

We add all the numbers together, and all the variables

5a-35=0

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

5a=35

a=35/5

a=7

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