7(a-7)=8(3a-4)

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Solution for 7(a-7)=8(3a-4) equation: 



7(a-7)=8(3a-4)

We move all terms to the left:

7(a-7)-(8(3a-4))=0

We multiply parentheses

7a-(8(3a-4))-49=0



We calculate terms in parentheses: -(8(3a-4)), so:

8(3a-4)

We multiply parentheses

24a-32

Back to the equation:

-(24a-32)



We get rid of parentheses

7a-24a+32-49=0

We add all the numbers together, and all the variables

-17a-17=0

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

-17a=17

a=17/-17

a=-1

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