2.4(x+1.9)÷0.5=48

问题描述:

2.4(x+1.9)÷0.5=48

2.4(x+1.9)÷0.5=48
2.4x+4.56=48×0.5
2.4x+4.56=24
2.4x=24-4.56
x=19.44÷2.4
x=8.1