7n+5(n+2)=10n+20

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Solution for 7n+5(n+2)=10n+20 equation: 



7n+5(n+2)=10n+20

We move all terms to the left:

7n+5(n+2)-(10n+20)=0

We multiply parentheses

7n+5n-(10n+20)+10=0

We get rid of parentheses

7n+5n-10n-20+10=0

We add all the numbers together, and all the variables

2n-10=0

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

2n=10

n=10/2

n=5

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