百分之14x减9.1-搜答案-神马作文网

2.25%X=6.4+3.62.25%X=10X=10÷0.0225X=0.0225分之10000

6-5％x=4.86-0.05x=4.80.05x=6-4.80.05x=1.2x=1.2÷0.05x=24

25%x=20x=20×100/25=80x+35%x=540135%x=540x=540×100/135=400x-78%x=8822%x=88x=88×100/22=400

20%X+X=10（1+20%）X=10X=10/120%X=8.33再答：3-1/14=41/14

x-15%x=680.85x=68x=80

70/100x+（30-x）*50/100=30*65/1007x/10+15-0.5x=19.50.2x=4.52x=45x=45/2x=22.5

x-80%x=4020%x=40x=40/20%x=40/（1/5）x=200

18-120%x=61.2x=18-61.2x=12x=10

x-0.15=1.70.85x=1.7x=1.7\0.85x=2

x减百分之十五x等于六十八x-0.15x=680.85x=68x=80

(x+1)34%+0.1x=(x-1)60%0.34(x+1)+0.1x=0.6(x-1)0.34x+0.34+0.1x=0.6x-0.60.34x+0.1x-0.6x=-0.6-0.34-0.16x

85+30%x-40%x=8085+0.3x-0.4x=800.4x-0.3x=85-800.1x=5x=5÷0.1x=50

百分之30X=480.3X=48X=160

75+10x/100-15x/100=7415x/100-10x/100=115x-10x=100x=20

x-25%x=2775%x=27x=27÷75%x=36

百分之70x加百分之40x减x等于1.80.7x+0.4x-x=1.80.1x=1.8x=1.8÷0.1=18再问：再问下百分之160x减x等于9再答：百分之160x减x等于91.6x-x=90.6x

9.1+百分之14X=0.70.14X=0.7-9.10.14X=-8.4X=-8.4/0.14X=-60

百分之21乘x加百分之42等于百分之18乘x减3两边同乘以100得：21x+42=18(x-3)3x=-96x=-32再问：为什么(x-3)有括号？再答：百分之21乘x加百分之42等于百分之18乘x减

1-(25/100)*x=1/41-1/4x=1/41/4x=3/4x=331.5减（3减x)乘7等于1431.5-21+7x=147x=3.5x=0.5