Các câu hỏi tương tự
(2x-1)(3y-2)=27 tim x y biet x y thuoc n
tim x,y,z thuoc Z biet /2x-4/+/y+2/+/2x+3y-z/=0
Tim x,y thuoc Z biet
a, xy - 2x - 3y = 5
b,5xy - 5x + y = 5
c,x + xy + y = 9
Tim x,y thuoc Z biet
a}[x-3].[2y+1]=7
b}[2x+1].[3y-2]=-55
tim x,y thuoc N,biet
a, 3x+12y=151
b, x.(3y+1)=15
Tim x,y thuoc N biet
(2x-1).(y+2)=15
tim x,y thuoc N biet
(2x+1)*(y+20)=10
Tim x , y thuoc N a)x.y=24 va x<y b) (x+3).(y-2) =45 c) (2x+1) . (y-7)=150 d)2x-xy-3y=1
Tim x va y, biet :
xy + 3y = 66
( x,y thuoc N )
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