问题标题:
求20道小学解方程和答案急求!
问题描述:
求20道小学解方程和答案
急求!
卜东波回答:
解方程
1:3/8x-25%x=42:x÷4=30%3:3x+20%x=1124:x-40%x=3.6
解:﹙3/8-25%﹚x=4x=30%×43·2x=11260%x=3·6
1/8x=4x=1.2x=35x=6
x=32
5:14%x-9.1=0.76:75%x-25%x=167:x-20%x=44×50%8:x-10%=18
14%x=9.80.5x=160.0.8x=220.9x=18
x=70x=32x=27.5x=20
9:60%x+25=4010:2x+30%x=9.211:1÷x=85%12;40%x-5/12=3/4
0.6x=152.3x=9.2x=1÷0.85解:0.4x=3/4+5/12
x=25x=4x=20/17x=7/6÷2/5
x=35/12
13:2﹙x+7﹚-3.6=20.814:x-5.5=3.5-x15:160×25%-1.3x=17.916:3/8÷x=4/15÷4/9
解2﹙x+7﹚=24.42x=3.5+5.51.3x=40-17.93/8÷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÷3/818:3/4x+1/2x=45×1/319:0.18×3-2x=0.520:0.6÷35%=1/5÷x
x÷2/7=56/91.25x=152x=0.54-0.51/5÷x=12/7
x=56/9×2/7x=15÷1.25x=0.04÷2x=1/5÷12/7
x=16/9x=12x=0.02x=7/60
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