Tuyển Cộng tác viên Hoc24 nhiệm kì 26 tại đây: https://forms.gle/dK3zGK3LHFrgvTkJ6
tim x,y,z biet 3x=4y=5z va x+y+z=-94
tim x y z biet
3x=4y=5z-3x-4y va 2x+y=z-38
Tim x,y,z biet (x-1)/2= (y+3)/4 =(z-5)/6 va 5z-3x-4y
Tim x,y,z biet x-1, y+3, z-5 voi ti le 2,4,6 va -3x - 4y + 3z = 50
Tim x y biet:5x-3y=4y=3z+10x va x+y+z=28
tim x,y,z biet(x-1/5)^2020+(y+0.4)^2000+(z-3)^6=0
tim x ,y ,z biet
x=4y=7z va x+2y -3z = -12
tim cac so x,y,z biet x -1 phan 2 bang y cong 3 phan 4 bang z-5 phan 6 va 5z - 5x - 4y bang 50
Tim x, y, z biet x, y, z > 0 , x-y/z = y-z/x = z-x/y va x+2y+3z=30
