-10=10(a+9)-2(6-a)

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Solution for -10=10(a+9)-2(6-a) equation: 



-10=10(a+9)-2(6-a)

We move all terms to the left:

-10-(10(a+9)-2(6-a))=0

We add all the numbers together, and all the variables

-(10(a+9)-2(-1a+6))-10=0



We calculate terms in parentheses: -(10(a+9)-2(-1a+6)), so:

10(a+9)-2(-1a+6)

We multiply parentheses

10a+2a+90-12

We add all the numbers together, and all the variables

12a+78

Back to the equation:

-(12a+78)



We get rid of parentheses

-12a-78-10=0

We add all the numbers together, and all the variables

-12a-88=0

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

-12a=88

a=88/-12

a=-7+1/3

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