-18=-7x+4x

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Solution for -18=-7x+4x equation: 



-18=-7x+4x

We move all terms to the left:

-18-(-7x+4x)=0

We add all the numbers together, and all the variables

-(-3x)-18=0

We get rid of parentheses

3x-18=0

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

3x=18

x=18/3

x=6

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