x-3/0.4-x 2/0.5=2.5
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x-3/0.4-x2/0.5=2.5x-3/0.4-x2/0.5=2.5x-3/0.4-x2/0.5=2.5两边乘25(x-3)-4(x+2)=55x-15-4x-8=55x-4x=5+15+8x=2
x-3/0.4-x 2/0.5=2.5
x-3/0.4-x 2/0.5=2.5
x-3/0.4-x 2/0.5=2.5
两边乘2
5(x-3)-4(x+2)=5
5x-15-4x-8=5
5x-4x=5+15+8
x=28
1、0.3X-0.4X=0.5 2、5X-2.5X+3.5X=-18 3、X-2/5X=-3+6解这些一元一次方程,
x/0.5-0.4x-0.6/0.2=2(-x+3)
(x+3)/2-(0.4x-1)/0.5=-2.5
(x-3)/0.4 -(x-2)/0.5=2.5
x-3/0.4-x 2/0.5=2.5
解方程(按顺序解答,3.8+X=12.8 6.4+X=15.6 X-4.8=4.8 1.5-X=0.84 2X+0.82=0.82 3+0.5=7 2X+0.4X=48(并检验)8x—x=14.735x+13x=9.65(x+3)=35x+3.7x+2=16.114x+3x—1.2x=15818—2.5x=13(并检验)1.5x—6=3(并检验)9.5x—5x=277x—0.6x=16
0.02x-0.01/0.03-0.4x+0.2/0.5-3X+2/4=-3求x
3道简单的分式方程,1.3/(1-x^) = 2/(1+2x+x) - 5/1-2x+x^2.5x/(x^+x-6) + (2x-5)/(x^-x-12) = (7x-10)/(x^-6x+8)3.(x+1)/(x+2) + (x+6)/(x+7) = (x+2)/(x+3) + (x+5)/(x+6)
(x+2)(x-1)+(x+3)(x+1)=x·x-1 求x (5x-4)(2x+5)(3x-6)(2x-4)=(2x-4)(2x+5)·0.5 求x
1、x+2+3x=42、 2x+2(x-1)=3/43、 x+2.5=2x-1 3/44、(x-2+3x)/0.5=45、5x=4(x+2)
解方程:x/4=30% 36/x=3/4 10/x=2.5/0.8 x/4=1.2/5 X/1.2=1.5/0.6 x/0.4=1.5/6 x/7=0.6/3.5 x/10=0.1/25-3x=8x+1 2(x-2)+2=x+1 3-x=2-5(x-1) 3x=5(32-x) 7(4-x)=9(x-4) 7x-8=2x+27 5x-18=3-2x (7x-4)+3(x-2)=2x+6 2(3x-4)+(4-x)=4x我是六年级的学生,我希望
x+17=3(x+13),2x-11.2=0.6x,2.5x-2.17=21.9-5.8x,8(x-1.5)=x+0.6,2(0.5-x)+6=3x-2.53,用方程解
请问,这6道关于一元一次方程的题目我都做对了吗?X-5=6X-5+5=6+5X=110.3X=45X=1505X-2X=93X=9X=32X+3X+4X=189X=18X=2-3X+0.5X=102.5X=10X=47X-4.5X=2.5乘以3-52.5X=2.5X=16X-7=4X-56X-4X=7+52X=12X=6
3.2+x=4.6 x-2.08=5.76 1.2x=0.84 3x+0.5x=4.2 4x-2.16=1.2 x-0.2x=16 2x-4*2.5=3.6 x除以5.4=0.26
3x+0.5x=4.2 4x-2.16=1.2 x-0.2x=16 2x-4x[这个x是乘】2.5=3.6 3x+5x=168 怎么解
(X+1)X(X+2)X(X+3)=504
160乘25%-1.3x=17.9 x/5-x/6=0.4 3(x+2)=40+11 0.3/0.5=x+1/2x-1 2.5/(x—0.5)=25% 1/3:0.25=80%:x160乘25%-1.3x=17.9x/5-x/6=0.43(x+2)=40+110.3/0.5=x+1/2x-12.5/(x—0.5)=25%1/3:0.25=80%:x
请问,这几道关于一元一次方程的题目,我做对了没有?(1) 3X+0.5X=10.53.5x=10.5X=3(2) 5X-2X=93x=9X=3(3) X+6x+5x=1812x=18X=1.5(4) 10x-4.5X=2.5乘以3.55.5x=8.75X=1.59(5) -6.5X=2.5乘以3.5-6.5x=8.75X=-1.34