3x=1/2(x+4+21)

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Solution for 3x=1/2(x+4+21) equation: 



3x=1/2(x+4+21)

We move all terms to the left:

3x-(1/2(x+4+21))=0



Domain of the equation: 2(x+4+21))!=0

x∈R



We add all the numbers together, and all the variables

3x-(1/2(x+25))=0

We multiply all the terms by the denominator


3x*2(x+25))-(1=0

Wy multiply elements

6x^2(x=0

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