50%x+60%(150-X)=80
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![50%x+60%(150-X)=80](/uploads/image/f/17423-71-3.jpg?t=50%25x%2B60%25%EF%BC%88150-X%EF%BC%89%3D80)
(60-X)(80-X)=(50-X)2-200吗那你认为(60-x)(80-x)=?(60-X)(80-X)=(50-X)2-200吗那你认为(60-x)(80-x)=?(60-X)(80-X)=(
60%X+80%X-12=X60%X+80%X-12=X60%X+80%X-12=X60%X+80%X-12=X1.4x-x=12x=301.4X-X=12X=30
x/(120-x)=x/60x/(120-x)=x/60x/(120-x)=x/60交叉相乘∴60x=-x²+120x∴x²-60x=0∴x(X-60)=0∴x=0或60x/(12
50x(x-1)+60x(x-4)=510050x(x-1)+60x(x-4)=510050x(x-1)+60x(x-4)=510050x(x-1)+60x(x-4)=510050x-50+60x-2
x+60%x=80x+60%x=80x+60%x=80x+60%x=80(1+0.6)x=801.6x=80x=80/1.6x=50,这是一道提取共因式的题.
x-60%X=80x-60%X=80x-60%X=80x-60%X=80100%x-60%x=8040%x=80x=80÷40%x=200
12x(x+x)=60X=?12x(x+x)=60X=?12x(x+x)=60X=?2x=60÷12
x+60%x=8080%-30x=30535%x=210x+50%x=60x-40%x=0x+60%x=8080%-30x=30535%x=210x+50%x=60x-40%x=0.36(1-80%)
60(2x-80)=(x-60)x(x+80)求未知数60(2x-80)=(x-60)x(x+80)求未知数60(2x-80)=(x-60)x(x+80)求未知数60(2x-80)=(x-60)(x+
60(2x-80)=(x-60)x(x-80)求未知数60(2x-80)=(x-60)x(x-80)求未知数60(2x-80)=(x-60)x(x-80)求未知数移项要换号啊.哎120x-4800=x
(x+x)+(x-x)+(x/x)=11.2(x+x)+(x-x)+(x/x)=11.2(x+x)+(x-x)+(x/x)=11.2(x+x)+(x-x)+(x/x)=11.22x+0+1=11.22
x/50-3=x/60+2(15+25/x)=120/10+xx/50-3=x/60+2(15+25/x)=120/10+xx/50-3=x/60+2(15+25/x)=120/10+x第一个等式两边
60%x—28+50%x+9=x求x等于?()60%x—28+50%x+9=x求x等于?()60%x—28+50%x+9=x求x等于?()60%x-28+50%x+9=x0.6x+0.5x-x=28-
x+x+(x*50%)=1.5X?x+x+(x*50%)=1.5X?x+x+(x*50%)=1.5X?x+x+0.5*x=1.5x2.5x=1.5xx=0
x除55%=10060%x=30x+50%x=4.5(1-25%)x=724x+40%x=176解方程x除55%=10060%x=30x+50%x=4.5(1-25%)x=724x+40%x=176解
80到解方程不是应用题3X+5X=4814X-8X=126*5+2X=4420X-50=5028+6X=8832-22X=1024-3X=310X*(5+1)=6099X=100-XX+3=18X-6
50%x=75x-40&x=12015x-30=15060%x-35%x=125x+15%x=1158x+42=178帮忙解一下50%x=75x-40&x=12015x-30=15060%x-35%x
解方程90-20%x=80x-25%x=21x+60%x=3.270%x+46=60(1-75%)x=363x+40%x=23.8解方程90-20%x=80x-25%x=21x+60%x=3.270%
解方程40%x=12(1+60%)x=24(1-37.5%)x=102x+50%x=2040%x+30%x=14035%x-15%x=72解方程40%x=12(1+60%)x=24(1-37.5%)x
(x-6)+(x-3)+x+(x+3)+(x+6)=150(x-6)+(x-3)+x+(x+3)+(x+6)=150(x-6)+(x-3)+x+(x+3)+(x+6)=150(x-6)+(x-3)+x