Các câu hỏi tương tự
Tìm x, biết:
a) (2,8x - 32) : 2/3 = -90
b) (4,5 - 2x) . 1 4/7(hỗn số) = 11/14
Tìm x biết
(2,8x - 32) : \(\frac{2}{3}\)= -90
(4,5 - 2x) . \(1\frac{4}{7}\)= \(\frac{11}{14}\)
Tìm x
(5+4/7):x=13
(2,8.x+32):2/3=90
Tìm x, biết :
\(\left(2,8x-32\right)\div\frac{2}{3}=-90\)
\(\left(4,5-2x\right)\times1\frac{4}{7}=\frac{11}{14}\)
Tìm x, biết:
a) (2,8x-32):\(\frac{2}{3}\)= -90
b) (4,5-2x).1\(\frac{4}{7}\)= \(\frac{11}{14}\)
Tim x :
a) ( 2,8x - 32 ) :\(\frac{2}{3}\) = -90
b) ( 4,5 - 2x ) . 1\(\frac{4}{7}\) =\(\frac{11}{14}\)
Tính
a) \(\frac{-1}{7}.\left(9\frac{1}{2}-8,75\right):\frac{2}{7}+0,625:1\frac{2}{3}\)
b)x-25%.x-1=-|-5|
c)\(2\frac{3}{4}.\left(0,4\right)1\frac{3}{5}.2,75+\left(-1,2\right):\frac{4}{11}\)
d) (2,8 x -32 ):\(\frac{2}{3}=-90\)
Tìm x
a) ( 2,8x - 32 ) : 2/3 = -90
b) 7,5 x 1/3/4x = 6/2/5
c) ( 4,5 - 2x ) : 3/4 = 1/1/3
d) -5/6 + 8/3 + (-29)/6 ≤ x ≤ -1/2 + 2 + 5/2
e) ( 2,7x - 1/1/2x ) : 2/7 = -21/4
Tìm a, b biết :
a/27 = -5/9 = -45/b
tìm x
(2,8.x-32):2/3=-90
4-|x-2012|=(-2)mũ2 (x thuộc z)