2/3x+21=7

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Solution for 2/3x+21=7 equation: 



2/3x+21=7

We move all terms to the left:

2/3x+21-(7)=0



Domain of the equation: 3x!=0

x!=0/3

x!=0

x∈R



We add all the numbers together, and all the variables

2/3x+14=0

We multiply all the terms by the denominator


14*3x+2=0

Wy multiply elements

42x+2=0

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

42x=-2

x=-2/42

x=-1/21

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