(3.6+x)*60%=7.2 x+30%x=90%x+30 45%+(9.6-x)=5.73.6+x)*60%= 7.2 x+30%x=90%x+30 45%+(9.6-x)=5.7
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(3.6+x)*60%=7.2x+30%x=90%x+3045%+(9.6-x)=5.73.6+x)*60%=7.2x+30%x=90%x+3045%+(9.6-x)=5.7(3.6+x)*60%=7
(3.6+x)*60%=7.2 x+30%x=90%x+30 45%+(9.6-x)=5.73.6+x)*60%= 7.2 x+30%x=90%x+30 45%+(9.6-x)=5.7
(3.6+x)*60%=7.2 x+30%x=90%x+30 45%+(9.6-x)=5.7
3.6+x)*60%= 7.2 x+30%x=90%x+30 45%+(9.6-x)=5.7
(3.6+x)*60%=7.2 x+30%x=90%x+30 45%+(9.6-x)=5.73.6+x)*60%= 7.2 x+30%x=90%x+30 45%+(9.6-x)=5.7
8.4
75
最后一题不对吧
(3.6+x)*60%=7.2 x+30%x=90%x+30 45%+(9.6-x)=5.73.6+x)*60%= 7.2 x+30%x=90%x+30 45%+(9.6-x)=5.7
60x(x-4)=30x
x-60%x=3.6
x-60%x-25%x=25%x-30
x+(30-x)=60
(x+30)*(x-18)=x*x
解方程:2.1÷x=0.3 ,7.2-x=4.3,x-0.84x=0.8,30×(x÷4)=60 ,84+x=10.2
解方程:2.1÷x=0.3 ,7.2-x=4.3,x-0.84x=0.8,30×(x÷4)=60 ,84+x=10.2
3.6[x+2]=7.2x-3.6
6x-7.2=3.6x+11.
60(30x)=40x+20(30+x)+1200
百分数的方程计算题x-40%x=3.6 25%x-16=24 30%x+90=117 x-20%x=28 60%+4x=27.6 14%x-9.1=0.7 35%x+x=13.5 x-75%x=0.5 x-45%
x/45=(x+30)/60+1 x=270x/45=(x+30)/60+1x=270
X+60%X=30解方程
x/45=1+(x+30)/60
X/45=(X+30)/60-1
60*(X-4)=30X
X/60=(x-30)/48 ,