`18,6-x xx 4,5 = 3,59`
`=>x xx 4,5 = 18,6-3,59`
`=> x xx 4,5 = 15,01`
`=> x = 15,01 : 4,5`
`=> x = 3,34`
18.6 - x . 4.5 = 3.59
x . 4.5 = 18.6 - 3.59
x . 4.5 = 15.01
x = 15.01 : 4.5
x = 3.335
Ta có: \(18,6-x\cdot4,5=3,59\)
\(\Leftrightarrow x\cdot4,5=15,01\)
hay \(x=\dfrac{1501}{450}\)