=>2/3x-3/2x+3/4=5/12
=>-5/12x=5/12-9/12=-4/12=-1/3
=>x=1/3:5/12=1/3x12/5=12/15=4/5
=>2/3x-3/2x+3/4=5/12
=>-5/12x=5/12-9/12=-4/12=-1/3
=>x=1/3:5/12=1/3x12/5=12/15=4/5
tìm x :
A, (2x+1)^3=2^3 . 5^2 - 75
B, tìm x, y là số nguyên : x . Y - x + y = 4
C, tìm x, y là số tự nhiên : 5^x+12^y=26
Bài1 :Tìm x:
( 6 : 3/5 - 17/16 . 6/7 / 21/5 . 10/11 + 57/11 - (3/20 + 1/2 - 1/15) . 12/49 / 10/3 + 2/9 ) . x = 215/96
Ai nhanh mk K ạ.
Các bạn giúp mình với a, -2/3x=4/15 b, x+1/3=2/5-(-1/3) c, -2/3x+-3/7+1/2x=-5/6 d, 2x.(x-1/7)=0
Tìm x:
a) 1/4 + 3/4 : 3x = -5
b) x - 25%x = 0,5
1)Tìm x:
a) 1/4 + 3/4 : 3x = -5
b) x - 25%x = 0,5
2) Tìm x, y thuộc Z biết:
4/x - 6 = 4/24 = -12/18
(đăng cho các CTV thử việc ^-^)
Tìm x:
a, -5/6 - x = 7/12 + -1/3
b, (4,5 - 2x).(-1 4/7) = 11/14
c, (2/11 + 1/3).x = (1/7 - 1/8).56
Tìm x:
a, (x - 1/2) : 1/3 + 5/7 = 9 5/7
b, x + 30% x = - 1,31
c, -2/3.x + 1/5 = 1/10
Tìm x:
(3 1/2 + 2x) x 2 2/3 = 5 1/3
x=1/4+2/13
x/3=2/3+-1/7
-8/3+1/3<x<-2/7+-5/7
-5/6 +8/3+29/-6=<x>=-1/2+2+5/2
1/6+2/5
3/5+-7/4
4/13+-12/30
-3/29+16/58
8/40+-36/45
-8/18+15/27