6-(-9)=9.5(a-6.9)

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Solution for 6-(-9)=9.5(a-6.9) equation: 



6-(-9)=9.5(a-6.9)

We move all terms to the left:

6-(-9)-(9.5(a-6.9))=0

We add all the numbers together, and all the variables

-(9.5(a-6.9))+15=0



We calculate terms in parentheses: -(9.5(a-6.9)), so:

9.5(a-6.9)

We multiply parentheses

9.5a-65.55

Back to the equation:

-(9.5a-65.55)



We get rid of parentheses

-9.5a+65.55+15=0

We add all the numbers together, and all the variables

-9.5a+80.55=0

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

-9.5a=-80.55

a=-80.55/-9.5

a=8+2.93548387097/6.12903225806

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