30+2.5n=20+5n

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Solution for 30+2.5n=20+5n equation: 



30+2.5n=20+5n

We move all terms to the left:

30+2.5n-(20+5n)=0

We add all the numbers together, and all the variables

2.5n-(5n+20)+30=0

We get rid of parentheses

2.5n-5n-20+30=0

We add all the numbers together, and all the variables

-2.5n+10=0

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

-2.5n=-10

n=-10/-2.5

n=+4

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