-9=3/4x-21

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Solution for -9=3/4x-21 equation: 



-9=3/4x-21

We move all terms to the left:

-9-(3/4x-21)=0



Domain of the equation: 4x-21)!=0

x∈R



We get rid of parentheses

-3/4x+21-9=0

We multiply all the terms by the denominator


21*4x-9*4x-3=0

Wy multiply elements

84x-36x-3=0

We add all the numbers together, and all the variables

48x-3=0

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

48x=3

x=3/48

x=1/16

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