21/4=3/4-2x

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Solution for 21/4=3/4-2x equation: 



21/4=3/4-2x

We move all terms to the left:

21/4-(3/4-2x)=0



Domain of the equation: 4-2x)!=0

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

-2x)!=-4

x!=-4/1

x!=-4

x∈R



We add all the numbers together, and all the variables

-(-2x+3/4)+21/4=0

We get rid of parentheses

2x-3/4+21/4=0

We multiply all the terms by the denominator


2x*4-3+21=0

We add all the numbers together, and all the variables

2x*4+18=0

Wy multiply elements

8x+18=0

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

8x=-18

x=-18/8

x=-2+1/4

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