.5(30-n)=4

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Solution for .5(30-n)=4 equation: 



.5(30-n)=4

We move all terms to the left:

.5(30-n)-(4)=0

We add all the numbers together, and all the variables

.5(-1n+30)-4=0

We multiply parentheses

-0.5n+15-4=0

We add all the numbers together, and all the variables

-0.5n+11=0

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

-0.5n=-11

n=-11/-0.5

n=+22

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