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x-o.2x+o.o7(x-0.2x)=73.53 ?
 Sep 13, 2013
 #1
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x??
 Sep 13, 2013
 #2
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x-o.2x+o.o7(x-0.2x)=73.53 => (x - 0.2x)(1 + 0.07) = 73.53 => (x - 0.2x)*1.07 = 73.53 => 0.8x*1.07 = 73.53 => 0.856x = 73.53 => 856x = 73530 => x = 36765/428

solve(x-(0.2x)+0.07(x-(0.2x))=73.53,x)
 Sep 13, 2013

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