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0.47(500)+0.3x=0.4(500+x)
We move all terms to the left:
0.47(500)+0.3x-(0.4(500+x))=0
We add all the numbers together, and all the variables
0.3x-(0.4(x+500))+0.47500=0
We add all the numbers together, and all the variables
0.3x-(0.4(x+500))+0.475=0
We calculate terms in parentheses: -(0.4(x+500)), so:We get rid of parentheses
0.4(x+500)
We multiply parentheses
0.4x+200
Back to the equation:
-(0.4x+200)
0.3x-0.4x-200+0.475=0
We add all the numbers together, and all the variables
-0.1x-199.525=0
We move all terms containing x to the left, all other terms to the right
-0.1x=199.525
x=199.525/-0.1
x=-1995+0.025000000000006/0.1
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