21/2-2n=3/2

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Solution for 21/2-2n=3/2 equation: 



21/2-2n=3/2

We move all terms to the left:

21/2-2n-(3/2)=0

We add all the numbers together, and all the variables

-2n+21/2-(+3/2)=0

We get rid of parentheses

-2n+21/2-3/2=0

We multiply all the terms by the denominator


-2n*2+21-3=0

We add all the numbers together, and all the variables

-2n*2+18=0

Wy multiply elements

-4n+18=0

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

-4n=-18

n=-18/-4

n=4+1/2

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