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0.4(10.000)+0.5x=0.45(10.000+x)
We move all terms to the left:
0.4(10.000)+0.5x-(0.45(10.000+x))=0
We add all the numbers together, and all the variables
0.5x-(0.45(x+10))+0.410=0
We add all the numbers together, and all the variables
0.5x-(0.45(x+10))+0.41=0
We calculate terms in parentheses: -(0.45(x+10)), so:We get rid of parentheses
0.45(x+10)
We multiply parentheses
0.45x+4.5
Back to the equation:
-(0.45x+4.5)
0.5x-0.45x-4.5+0.41=0
We add all the numbers together, and all the variables
0.05x-4.09=0
We move all terms containing x to the left, all other terms to the right
0.05x=4.09
x=4.09/0.05
x=81+0.04/0.05
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