1.2-2x/0.2-1.5-2.5x/0.5-3x-5/4=1/2

(1.2-2x)/0.2-(1.5-2.5x)/0.5-(3x-5)/4=0.急(1.2-2x)/0.2-(1.5-2.5x)/0.5-(3x-5)/4=0.急(1.2-2x)/0.2-(1.5-2.

3.2+x=4.6x-2.08=5.761.2x=0.843x+0.5x=4.24x-2.16=1.2x-0.2x=162x-4*2.5=3.6x除以5.4=0.263.2+x=4.6x-2.08=5

3x+0.5x=4.24x-2.16=1.2x-0.2x=162x-4x[这个x是乘】2.5=3.63x+5x=168怎么解3x+0.5x=4.24x-2.16=1.2x-0.2x=162x-4x[这

解方程:x/4=30%36/x=3/410/x=2.5/0.8x/4=1.2/5X/1.2=1.5/0.6x/0.4=1.5/6x/7=0.6/3.5x/10=0.1/25-3x=8x+12(x-2)

2x+3.6*2=12.43(x+3.6)=18.6x+3.5x=13.527x-4x=34.53x+2.8=4.312x-24=63x+9=10.55x+1.2=4.73*1.5+2x=11.55.

0.3x＋7x-0.25x=21.58.7×(36-x)=04（不知道是x还是×都解了吧）x或者×(x＋0.2)=1.27(x＋6)-3x=4x(2x＋5)3(x＋2)=4(x＋1)18-4x=2x-

2.5(x-3x^2)-[6x^2-1.5(3x^2-5x)]2.5(x-3x^2)-[6x^2-1.5(3x^2-5x)]2.5(x-3x^2)-[6x^2-1.5(3x^2-5x)]

(1.2-2x)/0.2-(1.5-2.5x)/0.5=(3x-5)/4+1/2怎么做(1.2-2x)/0.2-(1.5-2.5x)/0.5=(3x-5)/4+1/2怎么做(1.2-2x)/0.2-(

一元一次方程2x+0.2=1.2x-0.6-2.2x一元一次方程2x+0.2=1.2x-0.6-2.2x一元一次方程2x+0.2=1.2x-0.6-2.2x2x+0.2=-0.6-x3x=-0.8x=

2(x+1)-(3-x)=2(1.5x-2.5)2(x+1)-(3-x)=2(1.5x-2.5)2(x+1)-(3-x)=2(1.5x-2.5)2(x-1)-(3-x)=2(1.5x-2.5)2x-3

19.8x+0.2x=2.5×219.8x+0.2x=2.5×219.8x+0.2x=2.5×219.8x+0.2x=2.5×2⇒　(19.8+0.2)X=5⇒　20X=5&#

解方程（按顺序解答,3.8+X=12.86.4+X=15.6X-4.8=4.81.5-X=0.842X+0.82=0.823+0.5=72X+0.4X=48(并检验)8x—x=14.735x+13x=

12x+3x＝18+2711x+40＝100-99x+30＝90+6x2.5x-x＝6+1.52x+18＝7x+336+2x＝7x-1412x+3x＝18+2711x+40＝100-99x+30＝90

求这三道题的值域f(x)=x^2+4x+5x∈{2.5}f(x)=x^2-4x+5x∈{1.5}f(x)=x+√1-x求这三道题的值域f(x)=x^2+4x+5x∈{2.5}f(x)=x^2-4x+5

谁能帮下我把下面30道一元一次方程解了1.2(x-2)-3(4x-1)=9(1-x)2.11x+64-2x=100-9x3.15-(8-5x)=7x+(4-3x)4.3(x-7)-2[9-4(2-x)

解方程1、0.7（3.5-3x）=1.42、x=7~（x-1.2）《检验》3、5x-45-4.5x=124、0.3x-0.2x5.6=0.025、（x＋2）÷2-1.5=2.56、5（x-1.2）=2

0.3+0.3x=0.39x=2x-1.5x=7.6xx=0.36x÷0.3=1.2x=6（x+1.2)=18.6x=7x+2x=8.1x=(x-5）÷3=1.7x=5（x+1.1)=15.5x=9x

3x-1.5x+4x-2.5x=-2*3-6*23x-1.5x+4x-2.5x=-2*3-6*23x-1.5x+4x-2.5x=-2*3-6*2 

1.5x+x=4.还有一个，（x+1.2x）×2=661.5x+x=4.还有一个，（x+1.2x）×2=661.5x+x=4.还有一个，（x+1.2x）×2=661.5x+x=4.52.5x=4.5x

1.5X-X＝0.21.5X-X＝0.21.5X-X＝0.2（1.5-1）x=0.2x=0.2/0.5x=0.4x=0.2除以0.5x=4x=0.41.5x-x=0.20.5x=0.2x=0.4