3x+6+7x-18=-90

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Solution for 3x+6+7x-18=-90 equation: 



3x+6+7x-18=-90

We move all terms to the left:

3x+6+7x-18-(-90)=0

We add all the numbers together, and all the variables

10x+78=0

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

10x=-78

x=-78/10

x=-7+4/5

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