3/4+x=21

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Solution for 3/4+x=21 equation: 



3/4+x=21

We move all terms to the left:

3/4+x-(21)=0

determiningTheFunctionDomain
x-21+3/4=0

We multiply all the terms by the denominator


x*4+3-21*4=0

We add all the numbers together, and all the variables

x*4-81=0

Wy multiply elements

4x-81=0

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

4x=81

x=81/4

x=20+1/4

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