3x=18+7x

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Solution for 3x=18+7x equation: 



3x=18+7x

We move all terms to the left:

3x-(18+7x)=0

We add all the numbers together, and all the variables

3x-(7x+18)=0

We get rid of parentheses

3x-7x-18=0

We add all the numbers together, and all the variables

-4x-18=0

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

-4x=18

x=18/-4

x=-4+1/2

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