-21+5a=-6(a-2)

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Solution for -21+5a=-6(a-2) equation: 



-21+5a=-6(a-2)

We move all terms to the left:

-21+5a-(-6(a-2))=0



We calculate terms in parentheses: -(-6(a-2)), so:

-6(a-2)

We multiply parentheses

-6a+12

Back to the equation:

-(-6a+12)



We get rid of parentheses

5a+6a-12-21=0

We add all the numbers together, and all the variables

11a-33=0

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

11a=33

a=33/11

a=3

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