4x-9=x-18

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Solution for 4x-9=x-18 equation: 



4x-9=x-18

We move all terms to the left:

4x-9-(x-18)=0

We get rid of parentheses

4x-x+18-9=0

We add all the numbers together, and all the variables

3x+9=0

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

3x=-9

x=-9/3

x=-3

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