10=-9(4+a)+10

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Solution for 10=-9(4+a)+10 equation: 



10=-9(4+a)+10

We move all terms to the left:

10-(-9(4+a)+10)=0

We add all the numbers together, and all the variables

-(-9(a+4)+10)+10=0



We calculate terms in parentheses: -(-9(a+4)+10), so:

-9(a+4)+10

We multiply parentheses

-9a-36+10

We add all the numbers together, and all the variables

-9a-26

Back to the equation:

-(-9a-26)



We get rid of parentheses

9a+26+10=0

We add all the numbers together, and all the variables

9a+36=0

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

9a=-36

a=-36/9

a=-4

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