解方程
1:3／8 x－25%x=4 2:x÷4=30%3: 3x+20%x=1124:x-40%x=3.6
解: ﹙3／8－25%﹚x=4x=30%×43·2 x=112 60%x=3·6
1／8x =4x=1.2 x=35x=6
x=32
5:14%x-9.1=0.7 6: 75%x-25%x=16 7: x-20%x=44×50% 8:x-10%=18
14%x=9.80.5x=160.0. 8x=22 0.9 x=18
x=70x=32x=27.5 x=20
9 :60%x+25=40 10:2x+30%x=9.211:1÷x=85% 12;40%x-5／12=3／4
0.6x=152.3x=9.2 x=1÷0.85解 ： 0.4 x=3／4+5/12
x=25 x=4x=20／17 x=7/6÷2/5
x=35/12
13: 2﹙x+7﹚-3.6=20.8 14 :x-5.5=3.5-x15:160×25%-1.3x=17.9 16:3/8÷x=4/15÷4/9
解2﹙x+7﹚=24.42x=3.5+5.51.3x=40-17.9 3/8÷x=3/5
x+7=12.22x=91.3x=22.1x=3/8÷3/5
x=5.2x=4.5x=17x=5/8
17:x÷2/7=7/3÷3/818: 3/4 x+1/2 x=45×1/319:0.18×3-2x=0.520: 0.6÷35%=1/5÷x
x÷2/7=56/9 1.25x=152x=0.54-0.5 1/5÷x=12/7
x=56/9×2/7x=15÷1.25 x=0.04÷2x=1/5÷12/7
x=16/9 x=12x=0.02x=7/60