(0.3X+0.4X)÷2÷0.3+(0.3X+0.4X)÷2÷0.4=2X+2 怎么解
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(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÷
(0.3X+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。
3÷(9x-60-2x)=0.3| 6x-3.2=4x| 0.6x+5+0.4x=25.5| 20+8(4-x)=20| 47x-6=7x+4|
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(0.3X+0.4X)÷2÷0.3+(0.3X+0.4X)÷2÷0.4=2X+2 怎么解
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