Các câu hỏi tương tự
tim x, y thuoc Z biet x+y -x.y = 7
tim x, y thuoc Z biet 3/x/ phan 2 +5/y/ phan 3=8
tim x, y thuoc Z biet : x.y - 2.x - 3.y = 5 ( trinh bay nha )
tim x,y thuoc Z biet
|y|.|2x+3|=8
|2x+4|+|y-3|=0
|x-1|+|2y+7|=3
|x+5|+|2y+6| nho hon hoac bang 0
tim x, y thuoc z biet (x+7 ) (xy + 1)= 9
tim x,y thuoc z biet
-24/-6 = x/3 = 4/y^2 = z^3/-2
tim x, y thuoc z biet :
/ x-y / + / y-z/ + /z - x / = 2015
Tim x,y thuoc Z biet
a}[x-3].[2y+1]=7
b}[2x+1].[3y-2]=-55
Tim x, y thuoc Z, biet:
x.y+x+y+1=-3