X+20+x-40=180

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Solution for X+20+x-40=180 equation:



X+20+X-40=180
We move all terms to the left:
X+20+X-40-(180)=0
We add all the numbers together, and all the variables
2X-200=0
We move all terms containing X to the left, all other terms to the right
2X=200
X=200/2
X=100

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