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150x-100x+38.800=40.200-150x
We move all terms to the left:
150x-100x+38.800-(40.200-150x)=0
We add all the numbers together, and all the variables
150x-100x-(-150x+40.2)+38.800=0
We add all the numbers together, and all the variables
50x-(-150x+40.2)+38.8=0
We get rid of parentheses
50x+150x-40.2+38.8=0
We add all the numbers together, and all the variables
200x-1.4=0
We move all terms containing x to the left, all other terms to the right
200x=1.4
x=1.4/200
x=1/142.857142857
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