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-x+2x=50x+100
We move all terms to the left:
-x+2x-(50x+100)=0
We add all the numbers together, and all the variables
x-(50x+100)=0
We get rid of parentheses
x-50x-100=0
We add all the numbers together, and all the variables
-49x-100=0
We move all terms containing x to the left, all other terms to the right
-49x=100
x=100/-49
x=-2+2/49
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