x X 9,25 +75%X x = 55,35
x.9,25+75%.x=55,35
x.9,25+0,75.x=55,35
x.(9,25+0,75)=55,35
x.10=55,35
x=55,35:10
x=5,535
Hok tốt
x.(9,25+3/4)=55,35
x.(9,25+0,75)=55,35
x.10=55,35
x=55,35:10
x=5,535
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