x-10+x-20+120=189

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Solution for x-10+x-20+120=189 equation: 



x-10+x-20+120=189

We move all terms to the left:

x-10+x-20+120-(189)=0

We add all the numbers together, and all the variables

2x-99=0

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

2x=99

x=99/2

x=49+1/2

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