a,(x-1/12):23/12=7/46
x-1/12=7/46 x 23/12
x-1/12=7/24
x=7/24+1/12
x=8
b, 13/15-(13/21+x)=7/10:4/12
13/15-(13/21+x)=21/10
13/21+x=13/15-21/10
13/21+x=-37/30
x=-37/30-13/21
x=-389/210
Tìm x
a) ( x + 1/4 -1/3 ) : ( 2+ 1/6 -1/4 ) = 7 /46
b) 13/15- ( 13/21 + x ) . 7 /12 =7/10
Giúp Khánh Chi vs <3
Tìm X, biết
a,(x+1/4-1/3):(2+1/6-1/4)=7/46
b, 13/15-(13/21+x).7/12=7/10
(x+1/4-1/3):(2+1/6-1/4)=7/46
13/15-(13/21+x).7/12=7/10
1 Tìm x
a) (3/4-1/5-1/6)::1/30-|3x-3|=2
b)5/7.3x-8/5=35/9
c)13/15-(13/21+x).7?12=7/10
d)(+1/4-1/3):(2+1/6-1/4)==7/46
TÌM X BIẾT
a,(X+1/4-1/3) CHIA (2+1/6-1/4)=7/46
b,13/45-(13/21+X)7/12=7/10
Tìm x:
a) x - 25% x = 1/2 ( một phần hai)
b) 8x = 7,8x + 25
c) ( x + 1/4 - 1/3) : (2 + 1/6 - 1/4) = 7/46
d) 13/15 - (13/21 + x) . 7/12 = 7/10
e) 2 / 1/2.x - 1/3 ? - 3/2 = 1/4
f) 3 ( 3x - 1/2)3 + 1/9 = 0
Bài 1: Tính:
A= 1001. (5/111111+ 5/222222- 4/3.7.11.13.17)
Bài 2: Tìm x:
a) x- 20/11.13- 20/13.15- 20/15.17-................-20/53.55= 3/11
b) (x+ 1/4- 1/3) : (2+ 1/6- 1/4)= 7/46
c) 13/15- (13/21+ x). 7/12= 7/10
1.tìm x
a)(x=1/4-1/3):(2+1/6-1/4)=7/40
b)13/15-(13/21+x).7/12=7/10
c)(-5/3)^3<x<-24/35.-5/6(x thuộc Z)
tìm\(x\in z\)biết :
a.\(\frac{13}{15}-\left(\frac{13}{21}+x\right)\times\frac{7}{12}=\frac{7}{10}\)
b.\(\left(x+\frac{1}{4}-\frac{1}{3}\right)\div\left(2+\frac{1}{6}-\frac{1}{4}\right)=\frac{7}{46}\)
