(x+12)+100+x=100

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Solution for (x+12)+100+x=100 equation: 



(x+12)+100+x=100

We move all terms to the left:

(x+12)+100+x-(100)=0

We add all the numbers together, and all the variables

x+(x+12)=0

We get rid of parentheses

x+x+12=0

We add all the numbers together, and all the variables

2x+12=0

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

2x=-12

x=-12/2

x=-6

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