-│-3/5│+2/7 (要过程) 解方程:x-3/13=-4/26 (要过程) 很急的!请帮帮忙好吗?
-│-3/5│+2/7 (要过程) 解方程:x-3/13=-4/26 (要过程) 很急的!请帮帮忙好吗?
-│-3/5│+2/7
=-3/5+2/7
=(-3*7+2*5)/(5*7)
=-11/35
(x-3)/13=-4/26
x-3=-4/2
x=-2+3
x=1
满意请采纳,谢谢~
2/5x=3/7(58-x) 解方程要过程
2/5x=3/7(58-x)
14x=15(58-x)
14x=15*58-15x
14x+15x=870
29x=870
x=30
(3/5X-36)/(2/5X+36)=2/3解方程,要过程
(3/5X-36)/(2/5X+36)=2/3
3(3/5x-36)=2(2/5x+36)
9/5x-108=4/5x+72
9/5x-4/5x=72+108
x=180
x-3/x-2 +1=3/2-x 解方程,要过程
(x-3)/(x-2 )+1=3/(2-x)?
( x-3)/(x-2) +1-3/(2-x)=0
( x-3)/(x-2)+3/(x-2)=-1
(x-3+3)/(x-2)=-1
x=-(x-2)
x=-x+2
2x=2
x=1
500x+3/4/25=60解方程 快!很急!要过程!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
500x+(3/4)/25=60
500x+3/4*1/25=60
500x+3/100=60
100*500x+100*3/100=60*100
50000x+3=6000
50000x=5997
x=5997/50000
3/2【2/3(x-1)-2】-x=2解方程 要过程
直接去括号:
(X-1)-3=2
X=6。
解方程:36%*5-3/4X=3/5 要过程
36%*5-3/4X=3/5
0.36x5-0.75x=0.6
0.75x=0.36x5-0.6
0.75x=1.8-0.6
0.75x=1.2
x=1.2÷0.75
x=1.6
解方程,要过程! 2x%=13/40 3/4x-5x%=17.5
2x%=13/40
0.02x=0.325
x=16.25
3/4x-5x%=17.5
0.75x-0.05x=17.5
0.7x=17.5
x=25
解方程:2/3X+X=15 很急啊 要过程
(2/3+1)X=15
5/3X=15
X=15*3/5
X=9
解方程:要过程5/6X+0.4=2/3
5/6X=2/3-0.4
5/6X=4/15
X=4/15÷5/6
X=8/25