(x+3)/3+x/3=7

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Solution for (x+3)/3+x/3=7 equation: 



(x+3)/3+x/3=7

We move all terms to the left:

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

We multiply all the terms by the denominator


(x+3)+x-7*3=0

We add all the numbers together, and all the variables

x+(x+3)-21=0

We get rid of parentheses

x+x+3-21=0

We add all the numbers together, and all the variables

2x-18=0

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

2x=18

x=18/2

x=9

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