8x-0.6=9.4*2解方程
问题描述：
8x-0.6=9.4*2解方程
答
8x-0.6=9.4×2
8x-0.6=18.8
8x=18.8+0.6
8x=19.4
x=19.4÷8
x=2.425还有8.9x-2.1x-1.8x=33x+0.2X6=3.6 7.2+4x=101-0.25x=0.75 (全部解方程）8.9x-2.1x-1.8x=3(8.9-2.1-1.8)x=35x=3x=3÷5x=0.63x+0.2X6=3.63x+1.2=3.63x=3.6-1.23x=2.4x=2.4÷3x=0.8 7.2+4x=104x=10-7.24x=2.8x=2.8÷7x=0.41-0.25x=0.750.25x=1-0.750.25x=0.25x=1