2x/3+21=7

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



2x/3+21=7

We move all terms to the left:

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

We add all the numbers together, and all the variables

2x/3+14=0

We multiply all the terms by the denominator


2x+14*3=0

We add all the numbers together, and all the variables

2x+42=0

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

2x=-42

x=-42/2

x=-21

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