Các câu hỏi tương tự
tim x thuoc z biet y^2-x^2=102
tim x y thuoc z biet (x+y).2=xy
tim x,y thuoc Z biet 25-y^2=9(x-2018)^2
tim cac so x,y,z thuoc Q biet rang (x+y):(5-z):(y+z):(y+9)=3:1:2:5
tim x, y thuoc Z biet :
a. x/6=5y va x<y
b, -3/y= x/4 va x<0<y
c, x+3/ y+5= 3/5 va x+y=6
tim x,y thuoc z biet 25-\(y^2\)=8.(x-2009)^2
tim x biet 2x+9/x+2 + 5x+17/ x+3 - 3x/ x+3 ( x thuoc Z)
tim x,y thuoc Z biet
25-y2=8(x-2015)2
a, Tim x biet:/x-2/+/3-2x/=2x+1
b, Tim x,y thuoc Z biet:xy+2x-y=5
c, tim x,y,z, biet :2x=3y;4y=5zva 4x-3y+5z=7