8x-3=13,0.3x+0.4=0.7x-0.1,4x-5=9/2x-4 ,y-1/2+3=y+12/3-1
问题描述:
8x-3=13,0.3x+0.4=0.7x-0.1,4x-5=9/2x-4 ,y-1/2+3=y+12/3-1
答
8x-3=13,0.3x+0.4=0.7x-0.1,4x-5=9/2x-4 ,y-1/2+3=y+12/3-1