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(250)(0.9-x)+200(1.8-0.412-0.244-x)-225x=0
We add all the numbers together, and all the variables
250(-1x+0.9)+200(-1x+1.144)-225x=0
We add all the numbers together, and all the variables
-225x+250(-1x+0.9)+200(-1x+1.144)=0
We multiply parentheses
-225x-250x-200x+225+228.8=0
We add all the numbers together, and all the variables
-675x+453.8=0
We move all terms containing x to the left, all other terms to the right
-675x=-453.8
x=-453.8/-675
x=119.421052632/177.631578947
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