7x-x+9=3x+18+-20

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Solution for 7x-x+9=3x+18+-20 equation: 



7x-x+9=3x+18+-20

We move all terms to the left:

7x-x+9-(3x+18+-20)=0

We add all the numbers together, and all the variables

7x-x-(3x-2)+9=0

We add all the numbers together, and all the variables

6x-(3x-2)+9=0

We get rid of parentheses

6x-3x+2+9=0

We add all the numbers together, and all the variables

3x+11=0

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

3x=-11

x=-11/3

x=-3+2/3

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