25=4(7n+7)-5(2+7n)

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Solution for 25=4(7n+7)-5(2+7n) equation: 



25=4(7n+7)-5(2+7n)

We move all terms to the left:

25-(4(7n+7)-5(2+7n))=0

We add all the numbers together, and all the variables

-(4(7n+7)-5(7n+2))+25=0



We calculate terms in parentheses: -(4(7n+7)-5(7n+2)), so:

4(7n+7)-5(7n+2)

We multiply parentheses

28n-35n+28-10

We add all the numbers together, and all the variables

-7n+18

Back to the equation:

-(-7n+18)



We get rid of parentheses

7n-18+25=0

We add all the numbers together, and all the variables

7n+7=0

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

7n=-7

n=-7/7

n=-1

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