Các câu hỏi tương tự
Timf `x`:
`(x - 2)/3 = (x + 1)/4`
`(x - 2) . 4 = (x + 1) . 3`
`<=> 4x - 8 = 3x + 3`
`<=> 4x - 3x = 3 + 8`
`<=> (4 - 3)x = 11`
`=> x = 11`
Timf x biết:
(x+1)+(x+2)+(x+3)+...+(x+100)=5750
a, (x+1) + (x+2) + (x+3) +....+ (x+9)=90
Timf x
timf x biet 1+2+3+...+ x =55
Timf x,y:
8/5=-12/x
x-1/-4=-4/x-1
-2/x=y/4
4/y+2=7/3y+1
2x-1/3=3x+!/4
timf cacs soos nguyeen x, y sao cho: y/3-1/x=1/3
x+(x+1)+(x+2)+......+(x+100)=6060
Timf x
Timf số nguyên x , biết
(x-3).(2y+1)=7
(X-2).(2y+1)=8
timf x y nha