21=(3x+8)/(4x-7)

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Solution for 21=(3x+8)/(4x-7) equation: 



21=(3x+8)/(4x-7)

We move all terms to the left:

21-((3x+8)/(4x-7))=0



Domain of the equation: (4x-7))!=0

x∈R



We multiply all the terms by the denominator


-((3x+8)+21*(4x-7))=0



We calculate terms in parentheses: -((3x+8)+21*(4x-7)), so:

(3x+8)+21*(4x-7)

We multiply parentheses

(3x+8)+84x-147

We get rid of parentheses

3x+84x+8-147

We add all the numbers together, and all the variables

87x-139

Back to the equation:

-(87x-139)



We get rid of parentheses

-87x+139=0

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

-87x=-139

x=-139/-87

x=1+52/87

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