9x-30=-3x+18

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Solution for 9x-30=-3x+18 equation: 



9x-30=-3x+18

We move all terms to the left:

9x-30-(-3x+18)=0

We get rid of parentheses

9x+3x-18-30=0

We add all the numbers together, and all the variables

12x-48=0

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

12x=48

x=48/12

x=4

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