21=3x-18/5

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Solution for 21=3x-18/5 equation: 



21=3x-18/5

We move all terms to the left:

21-(3x-18/5)=0

We add all the numbers together, and all the variables

-(+3x-18/5)+21=0

We get rid of parentheses

-3x+21+18/5=0

We multiply all the terms by the denominator


-3x*5+18+21*5=0

We add all the numbers together, and all the variables

-3x*5+123=0

Wy multiply elements

-15x+123=0

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

-15x=-123

x=-123/-15

x=8+1/5

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