Các câu hỏi tương tự
b1
tim x,y
x/y+y/x=2
CMR
3x+3y/y+x>6
3x+3y+3x+3y/x+y+z+x
3y/2+37/y>18
Bai 1;Tim x,y,z
a; x/z+y+1=y/x+z+1=z/x+y-2=x+y+z
b; 3x/8=3y/64=3z/216 va 2x^2+2y^2-z^2=1
Tim cặp số nghuyên x,y thỏa mãn:
a)5xy+5x+3y=-16
b)3x+7=y(x+2)
tim x, y E Z sao cho:
3y-2(x^2)=5
tim x, y, z biet
a) x/20=y/9=z/6va x-2y +4z=13
b)4x=3y;7y=5z va x-y+z
c)x/2=29/3=47/7 va 3x + 5y + 7z = 123
tim x y E z biet
(2x+1).(3y-2)=-55
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 E Z biet
\(a,\frac{2x-12}{x-3}=\frac{x-3}{2x-12}\)
\(b,\frac{3x+4}{x-16}=\frac{x-16}{3x+4}\)
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.