(0.3X+0.4X)÷2÷0.3+(0.3X+0.4X)÷2÷0.4=2X+2 怎么解

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/07 08:58:20
(0.3X+0.4X)÷2÷0.3+(0.3X+0.4X)÷2÷0.4=2X+2 怎么解

(0.3X+0.4X)÷2÷0.3+(0.3X+0.4X)÷2÷0.4=2X+2 怎么解
(0.3X+0.4X)÷2÷0.3+(0.3X+0.4X)÷2÷0.4=2X+2 怎么解

(0.3X+0.4X)÷2÷0.3+(0.3X+0.4X)÷2÷0.4=2X+2 怎么解
(0.3X+0.4X)÷2÷0.3+(0.3X+0.4X)÷2÷0.4=2X+2
等式两边都乘以2*0.3*0.4
(0.3x+0.4)x0.4+(0.3x+0.4x)x0.3=(2x+2)x2x0.3x0.4
0.49x=0.48x+0.48
0.01x=0.48
x=48

(0.3x+0.4)x0.4+(0.3x+0.4x)x0.3=(2x+2)x2x0.3x0.4
0 .49x=0.48x+0.48
0.01x=0.48
x=48
望采纳。