20n+30=18n+40

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Solution for 20n+30=18n+40 equation: 



20n+30=18n+40

We move all terms to the left:

20n+30-(18n+40)=0

We get rid of parentheses

20n-18n-40+30=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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