Question

x:0.25+x:0.5+x+x:0.01=321

Answer 1

X x 4 + X x 2 + X + X x 100 = 321

X x (4 + 2 + 1 + 100) = 321

X x 107 = 321

X = 321 : 107

X = 3

Answer 2

<=>x:(0,25+0,5+0,01)=321

<=>x:0,76=321

<=>x=321x0,76

<=>x=243,96

Answer 3

243,96 bạn nha

CHÚC BẠN HỌC GIỎI

Answer 4

X x 4 + X x 2 + X + X x 100 =321

X x ( 4 + 2 + 1 + 100 ) = 321

X x 107 = 321 

X = 321 : 107 

X = 3