-240=5(1+7a)

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Solution for -240=5(1+7a) equation: 



-240=5(1+7a)

We move all terms to the left:

-240-(5(1+7a))=0

We add all the numbers together, and all the variables

-(5(7a+1))-240=0



We calculate terms in parentheses: -(5(7a+1)), so:

5(7a+1)

We multiply parentheses

35a+5

Back to the equation:

-(35a+5)



We get rid of parentheses

-35a-5-240=0

We add all the numbers together, and all the variables

-35a-245=0

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

-35a=245

a=245/-35

a=-7

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