285=6(9a+2)+3

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Solution for 285=6(9a+2)+3 equation: 



285=6(9a+2)+3

We move all terms to the left:

285-(6(9a+2)+3)=0



We calculate terms in parentheses: -(6(9a+2)+3), so:

6(9a+2)+3

We multiply parentheses

54a+12+3

We add all the numbers together, and all the variables

54a+15

Back to the equation:

-(54a+15)



We get rid of parentheses

-54a-15+285=0

We add all the numbers together, and all the variables

-54a+270=0

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

-54a=-270

a=-270/-54

a=+5

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