-245=7(1+6a)

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Solution for -245=7(1+6a) equation: 



-245=7(1+6a)

We move all terms to the left:

-245-(7(1+6a))=0

We add all the numbers together, and all the variables

-(7(6a+1))-245=0



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

7(6a+1)

We multiply parentheses

42a+7

Back to the equation:

-(42a+7)



We get rid of parentheses

-42a-7-245=0

We add all the numbers together, and all the variables

-42a-252=0

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

-42a=252

a=252/-42

a=-6

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