18+x=-4x-42

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Solution for 18+x=-4x-42 equation: 



18+x=-4x-42

We move all terms to the left:

18+x-(-4x-42)=0

We get rid of parentheses

x+4x+42+18=0

We add all the numbers together, and all the variables

5x+60=0

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

5x=-60

x=-60/5

x=-12

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