<=> 71=\(\dfrac{x+140}{x}\)
=>71x=x+140
<=>71x-x=140
<=>70x=140
<=>x=2
Vậy x=2
Đúng 0
Bình luận (0)
<=> 71=\(\dfrac{x+140}{x}\)
=>71x=x+140
<=>71x-x=140
<=>70x=140
<=>x=2
Vậy x=2
Tìm x:
a) (X x 0,25 + 1999) x 2000 = ( 53 + 1999 ) x 2000
b) 71 + 65 x 4 = \(\dfrac{x+140}{x}\) + 260
tìm x :71+65x4=x+140/x+260
tìm X
71+65x4=X+140/X+260
Tìm x
71+65.4 = x+140/x+260
tìm x biết
71 + 65x4=(x + 140):x +260
tìm X
71 + 65 x 4 = X + 140 / X +260
71+65x4=x+140/x+260
Tìm x
71 + 65 x 4 = \(\frac{x+140}{x}+260\)
71 + 65 x 4 = x + 140 / x + 260.