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
Tim x+y+z = ? biet (x-1) /2= (y-2) /3 = (z-3) /4 va 2x+3y-z=95
tim x y z x/2=y/3 y/4=z/5 va x^2-y^2=16
3x/8=3y/6y=3z/216 va 2x^2+2y^2-z^2=1
tim x,y,z biet
x+1/2 = y-2/3 = z-3/4 va 2x + 3y - z = 50
tim x,y,z biet
x+1/2 = y-2/3 = z-3/4 va 2x + 3y - z = 50
tim x;y;z biet
1/2x=2/3y=3/4z va x-y =15
1. tim cac so x,y,z biet rang 1/2x=2/3y=3/4zva x-y=15
tim x,y,z biet x/4=y/3 . x/3=z/5 và 2x-3y=6
Tim x,y,z biet x/4=y/3 . x/3=z/5 và 2x - 3y + z=6
