-40=-6(1+7n)+8(8-7n)

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Solution for -40=-6(1+7n)+8(8-7n) equation: 



-40=-6(1+7n)+8(8-7n)

We move all terms to the left:

-40-(-6(1+7n)+8(8-7n))=0

We add all the numbers together, and all the variables

-(-6(7n+1)+8(-7n+8))-40=0



We calculate terms in parentheses: -(-6(7n+1)+8(-7n+8)), so:

-6(7n+1)+8(-7n+8)

We multiply parentheses

-42n-56n-6+64

We add all the numbers together, and all the variables

-98n+58

Back to the equation:

-(-98n+58)



We get rid of parentheses

98n-58-40=0

We add all the numbers together, and all the variables

98n-98=0

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

98n=98

n=98/98

n=1

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