3x=7/21-2x=1/21=5

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Solution for 3x=7/21-2x=1/21=5 equation: 



3x=7/21-2x=1/21=5

We move all terms to the left:

3x-(7/21-2x)=0



Domain of the equation: 21-2x)!=0

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

-2x)!=-21

x!=-21/1

x!=-21

x∈R



We add all the numbers together, and all the variables

3x-(-2x+7/21)=0

We get rid of parentheses

3x+2x-7/21=0

We multiply all the terms by the denominator


3x*21+2x*21-7=0

Wy multiply elements

63x+42x-7=0

We add all the numbers together, and all the variables

105x-7=0

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

105x=7

x=7/105

x=1/15

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