tim x y z biet x-1/2=y-2/3=z-3/4 biet x-2y+3z=14
biet x;y;z thoa man: (x-1)/2 = (y-2)/3 = (z-3)/4 va x-2y+3z = -10
khi do x+y+z = ?
tim x,y,z biet : x/2=y/3=z/5 va x-2y+z=10
tim x;y;z biet x/5=y/12=z/7 va x-y+z=30
tim x ,y ,z biet
x=4y=7z va x+2y -3z = -12
Tim x,y,z:biet
x/2=y/3=z/4 va x+2y-3z=30
tim x,y,z biet
a/ x:y:z = 5:3:4 va x+2y-z =-121
b/ 5x = 2y ; 3y = 5z va x+y+z = -970
c/ x/3 = y/12 = z/5 va x.y.z = 22,5
tìm x,y,z biet:
x+1/2=y-2/-1=z+5/3 va x+2y+3z+28=0
giúp mình nha
tìm x,y,z biet:
x+1/2=y-2/-1=z+5/3 va x+2y+3z+28=0
giúp mình nha