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1500(.4)(3)=x
We move all terms to the left:
1500(.4)(3)-(x)=0
We add all the numbers together, and all the variables
-x+1500(0.4)3=0
We add all the numbers together, and all the variables
-1x+1800=0
We move all terms containing x to the left, all other terms to the right
-x=-1800
x=-1800/-1
x=+1800
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