55+(3x-7)+(x+20)=0

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Solution for 55+(3x-7)+(x+20)=0 equation:



55+(3x-7)+(x+20)=0
We get rid of parentheses
3x+x-7+20+55=0
We add all the numbers together, and all the variables
4x+68=0
We move all terms containing x to the left, all other terms to the right
4x=-68
x=-68/4
x=-17

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