7a-6a=6(1-5a)-6(1-9a)

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Solution for 7a-6a=6(1-5a)-6(1-9a) equation: 



7a-6a=6(1-5a)-6(1-9a)

We move all terms to the left:

7a-6a-(6(1-5a)-6(1-9a))=0

We add all the numbers together, and all the variables

7a-6a-(6(-5a+1)-6(-9a+1))=0

We add all the numbers together, and all the variables

a-(6(-5a+1)-6(-9a+1))=0



We calculate terms in parentheses: -(6(-5a+1)-6(-9a+1)), so:

6(-5a+1)-6(-9a+1)

We multiply parentheses

-30a+54a+6-6

We add all the numbers together, and all the variables

24a

Back to the equation:

-(24a)



We add all the numbers together, and all the variables

-23a=0

a=0/-23

a=0

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