174=-6(-1+7a)

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Solution for 174=-6(-1+7a) equation: 



174=-6(-1+7a)

We move all terms to the left:

174-(-6(-1+7a))=0

We add all the numbers together, and all the variables

-(-6(7a-1))+174=0



We calculate terms in parentheses: -(-6(7a-1)), so:

-6(7a-1)

We multiply parentheses

-42a+6

Back to the equation:

-(-42a+6)



We get rid of parentheses

42a-6+174=0

We add all the numbers together, and all the variables

42a+168=0

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

42a=-168

a=-168/42

a=-4

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