tìm x biết:
x/6=3/2
Tìm x, y biết: 2/x=3/yvà xy = 96.
Tìm các số nguyên x, y biết rằng:
x/4−1/y=1/2
tìm x , biết
x - 100 = 200
tổng 3 số là 126 , biết 2 \ 3 số thứ 1 = 2 \ 5 số thứ 2 , 1 \ 6 số thứ 1 = 1 \ 5 số thứ 3 ,tìm 3 số đó?
Tìm x biết
\(\frac{x}{28}=\frac{56}{42}\)
Tìm các số hữu tỉ x, y, z biết rằng:
x(x + y + z) = -5; y(x + y + z) = 9; z(x + y + z) = 5.
Tìm số 6 và số 9 biết :
888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888886888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888988888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888
tìm x
(2+x)+(4+x)+(6+x)+...+(52+x) =780