2x+3=x-1 8x-2=7x-2 10y+7=12y-5-3y 2.4x-9.8=1.4x-9 0.48x-6= -0.02x 2x；3=6；5 8；3=4x；7
问题描述：
2x+3=x-1 8x-2=7x-2 10y+7=12y-5-3y 2.4x-9.8=1.4x-9 0.48x-6= -0.02x 2x；3=6；5 8；3=4x；7
只要在今天耳朵7点半前完成,我加100 快要准确
答
2x+3=x-12x-x=-1-3x=-4 8x-2=7x-2 8x-7x=-2+2x=010y+7=12y-5-3y 10y+7=9y-510y-9y=-5-7y=-122.4x-9.8=1.4x-9 2.4x-1.4x=9.8-9x=0.80.48x-6= -0.02x 0.48x+0.02x=60.5x=6x=122x:3=6:5 2x*5=3*610x=18x=1.88:3=4x:74x*...