5(a-8)-7(5a-7)=69

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Solution for 5(a-8)-7(5a-7)=69 equation: 



5(a-8)-7(5a-7)=69

We move all terms to the left:

5(a-8)-7(5a-7)-(69)=0

We multiply parentheses

5a-35a-40+49-69=0

We add all the numbers together, and all the variables

-30a-60=0

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

-30a=60

a=60/-30

a=-2

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