3x+3(5x/7x)=12-x

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Solution for 3x+3(5x/7x)=12-x equation: 



3x+3(5x/7x)=12-x

We move all terms to the left:

3x+3(5x/7x)-(12-x)=0



Domain of the equation: 7x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

3x+3(+5x/7x)-(-1x+12)=0

We multiply parentheses

3x+15x-(-1x+12)=0

We get rid of parentheses

3x+15x+1x-12=0

We add all the numbers together, and all the variables

19x-12=0

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

19x=12

x=12/19

x=12/19

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