Các câu hỏi tương tự
tim x,y: 3x-5:4-2x
tim x,y : 3x-5:4-2x
Tim x:
a) (3x-1)(-1/2x+5)=0
b) 2/3x+1/2x=5/2
Tim X,y thuộc Z
(X-3).(2x+1)=7
(2x+1).(3x-2)=-55
Xy+3x-7y=21
(x-2)(y+3)=15
(2x-1)(y-4)=-13
(3x+2)(1-y)=-7
5xy-5x+y=5
tim cap so x,y thuoc Z
tim x,y thuoc n de:
(x+22) chia het cho (x+1)
(2x+23) thuoc B *(x-1)
(3x+1) chia het cho (2x-1)
(x-2)*(2y+1)=17
xy+x+2y=5
tim 2 so tu nhien x va y biet 1) (2x+1)x(y-3)=10 2) (x+1)x(2y-5)=143 3) (3x-2)x(2y-3)=1 4) (x+1)x(2y-1)=12
tim x biet: 2x+5/3x-1=1/13
tim x biet 2x+5/3x-1=1/13