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(200-150)/250=x
We move all terms to the left:
(200-150)/250-(x)=0
We add all the numbers together, and all the variables
-x+50/250=0
We add all the numbers together, and all the variables
-1x+50/250=0
We multiply all the terms by the denominator
-1x*250+50=0
Wy multiply elements
-250x+50=0
We move all terms containing x to the left, all other terms to the right
-250x=-50
x=-50/-250
x=1/5
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