1) x=0;y=0
2) x=0; y =2
x=1;y=1
x=2;y=0
3) x=3;-3
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Tim x,y,z biet:
a) x/3 = y/-4 = z/-5 va 2x + 3y - 4z = 70
b) x/3 = y/2; x/5 = 2/7 va x+y+z = 184
c) x/5 = y/-7 ; y/4 = z/15 va x+3y-4z=18
d) 2x/3 = 3y/4 = 4z/5 va x+y+z=49
e) x/y = 3/7 va x.y = 84
Help me, pleass!!
Hoi dong ARMY dung vo tam luot qua nhe!!
Ai nhanh nhat to tick cho!!😘
tim x,y,z thuoc Z biet /2x-4/+/y+2/+/2x+3y-z/=0
tim x, y, z biet:
(x-y^2+z)^2+(y-2)^2+(z+3)^2=0
tim so nguyen x,y,z biet: -4/8=x/-10=-7/y=z/-24
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-2| + (x-y+1)^2 =0
Tim x, y va z, biet :
a) x/2 = y/3 = z/4 va x + y + z =18.
b) x/5 = y/-6 = z/7 va x + y - z =32.
c) x/5 = y/3 = z/2 va 2x + 3y + 4z =54.
d) x/2 = y/3 = z/6 va 3x - 2y + 2z = 24.
Ai biet thi chi giup minh nha. Cang nhanh cang tot ! Minh xin cam on.
tim x,y,z biet /x/+/y/+/z/=0
tim x,y,z biet x+y=5; x+z=7; y+z=9
tim x,y thuoc z biet (x-2).(y+12)<0