-25=10-7(n-1)

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Solution for -25=10-7(n-1) equation: 



-25=10-7(n-1)

We move all terms to the left:

-25-(10-7(n-1))=0



We calculate terms in parentheses: -(10-7(n-1)), so:

10-7(n-1)

determiningTheFunctionDomain
-7(n-1)+10

We multiply parentheses

-7n+7+10

We add all the numbers together, and all the variables

-7n+17

Back to the equation:

-(-7n+17)



We get rid of parentheses

7n-17-25=0

We add all the numbers together, and all the variables

7n-42=0

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

7n=42

n=42/7

n=6

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