7.6x+1.2x=5+3.88.8x=8.8x=1
7.6x-3.8=5-1.2x7.6x+1.2x=5+3.88.8x=8.8x=1
7.6x-3.8=5-1.2x7.6x+1.2x=3.8+58.8x=8.8x=1
1
8-5(2x-1)=6x-3 解:8-10x+5=6x-3 13-10x=6x-3 6x+10x=13+3 16x=16 x=16÷16 x=1