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

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Solution for 3(x+4)+7x=-18 equation: 



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

7x+3(x+4)+18=0

We multiply parentheses

7x+3x+12+18=0

We add all the numbers together, and all the variables

10x+30=0

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

10x=-30

x=-30/10

x=-3

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