3=2x+21/5

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Solution for 3=2x+21/5 equation: 



3=2x+21/5

We move all terms to the left:

3-(2x+21/5)=0

We add all the numbers together, and all the variables

-(+2x+21/5)+3=0

We get rid of parentheses

-2x+3-21/5=0

We multiply all the terms by the denominator


-2x*5-21+3*5=0

We add all the numbers together, and all the variables

-2x*5-6=0

Wy multiply elements

-10x-6=0

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

-10x=6

x=6/-10

x=-3/5

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