18x+3x-9x-9x=15

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Solution for 18x+3x-9x-9x=15 equation: 



18x+3x-9x-9x=15

We move all terms to the left:

18x+3x-9x-9x-(15)=0

We add all the numbers together, and all the variables

3x-15=0

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

3x=15

x=15/3

x=5

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