tìm x
2/9 + 7/9 : x = 1/18
x x 7/5 - 2/5 = 2/15
4/7 x ( x - 1/2 ) = 3/14
2/5 x x + 3/10 x x - x : 5 = 7/10
tìm X
2/3 - X - 1/5 = 2/5 - 1/7
1/2 x X : 2/3 = 1 và 1/5
2/5 x X + X x 1/5 = 2/7
Bài 1:
Tìm X:
A) 2/3 - X - 1/5 = 2/5 - 1/7
b) 1/2 x X : 2/3 = 1 2/5
c 2/5 x X +X x 1/5 = 2/7
Tìm X,biết
a). X+5/7=2/7 ; b). X-3 2/5=1 1/5
Tìm x
(7/5+x)-2/5=4
( 1 và 3/4 +x-7/8=5
(x-2/3):2/5=1/4
Tìm X
X + 2/5 x 5/7=10/7
1. Tìm x biết : x + x : 0,5 + x : 10 = 3,162 2/5× x + x × 1/5 = 2/7
Tìm x:
\(\dfrac{3}{5}\) : x = \(\dfrac{1}{3}+\dfrac{1}{2}\) x : \(\dfrac{7}{12}\) = 2 x - \(\dfrac{3}{2}\) = \(\dfrac{11}{4}-\dfrac{5}{4}\) x + \(\dfrac{5}{4}\) = \(\dfrac{3}{2}+\dfrac{7}{12}\)
x+3/5=7/2
x-1/4=1/5
2-x=4/7
hãy tìm X
tìm x biết :
a)x x 7/9=2/3 +2 và 1/2
b)5/7 + x :9/4=4/3