42=(5+a)6

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Solution for 42=(5+a)6 equation: 



42=(5+a)6

We move all terms to the left:

42-((5+a)6)=0

We add all the numbers together, and all the variables

-((a+5)6)+42=0



We calculate terms in parentheses: -((a+5)6), so:

(a+5)6

We multiply parentheses

6a+30

Back to the equation:

-(6a+30)



We get rid of parentheses

-6a-30+42=0

We add all the numbers together, and all the variables

-6a+12=0

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

-6a=-12

a=-12/-6

a=+2

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