x:0.25=4x
x:0.5=2x
x:0.01=100x
=>4x+2x+x+100x=214
=>107x=214
=>x=2
x : 0.25 + x : 0.5 + x + x :0.01 = 214
x : ( 0,25 + 0,5 + 0,01 ) = 214
x : 0, 31 = 214
x= 214 x 0,31
x =66,34
<=>x.4+x.2+x+x.100=214
<=>x(4+2+1+100)=214
<=>x.107=214
<=>x=2
vậy x=2
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