解方程:6.9x=23.12 6(x+2)=72 6.8x+2.3×=30.02 (9-4.5)x=4.5 6.8x+2.3×3=30.02 x÷(6.3-2.3)=1.16.8x+6.9x=27.4 1.8(x+0.2)=7.2 3x-4×6=48 6x+7x=26 x+3.5×3=18_百度作业帮
解方程:6.9x=23.12 6(x+2)=72 6.8x+2.3×=30.02 (9-4.5)x=4.5 6.8x+2.3×3=30.02 x÷(6.3-2.3)=1.16.8x+6.9x=27.4 1.8(x+0.2)=7.2 3x-4×6=48 6x+7x=26 x+3.5×3=18
6.8x+6.9x=27.4 1.8(x+0.2)=7.2 3x-4×6=48 6x+7x=26 x+3.5×3=18
6.8x+6.9x=27.4 13.7X=27.4 X=21.8(x+0.2)=7.2 X+0.2=4 X=3.83x-4×6=48 3X-24=48 3X=72 X=24 6x+7x=26 13X=26 X=2x+3.5×3=18 X+10.5=18 X=7.5
6.8x+6.9x=27.4
13.7x=27.4
x=21.8(x+0.2)=7.21.8x+0.36=7.2
x=3.83x-4×6=48
3x-24=48