\(tìmx,y,z\dfrac{y+z+1}{x}=\dfrac{x+z+2}{y}=\dfrac{x+y-z}{z}=\dfrac{1}{x+y+z}\)
Tìm x, y, z theo đề :
a) 1/2x=2/3y=3/4z và x-y=15
b) y+z+1/x = x+z+2/y=x+z-3/z=1/x+y+z
c) 2x+1/5=3y-2/7=2x+3y-1/6x
tính x, y, z biết
a) \(\dfrac{x}{2}=\dfrac{y}{3},\dfrac{y}{5}=\dfrac{z}{7}\), x + y + z = 92
b) 2x = 3y = 5z, x + y - z = 95
c) \(\dfrac{x}{y+x+1}=\dfrac{y}{x+z+1}=\dfrac{z}{x+y-2}=x+y+z\)
\(
\frac{2.x+2.y+3}{z}=\frac{3.x+3.x+1}{y}=\frac{y+z+2}{x}=\frac{6}{x+y+z}
\)
Tìm x,y,z
tim x,y,z biết
\(\dfrac{y+a+9}{x}=\dfrac{x+z+2}{y}=\dfrac{x+z-3}{z}=\dfrac{1}{x+y+z}\)
x-1/2=y+3/4=z-5/6 tìm x y z
\(\dfrac{x}{y+z+1}\)=\(\dfrac{y}{x+z+1}\)=\(\dfrac{z}{x+y-2}\)=x+y+z giúp mik vs
tìm x,y,z biết x/2=y/5; y/3=z/4 và x+y-z=-9
a\(\frac{x}{5}=\frac{y}{3};x^2-y^2=4\) với x,y > 0
b)\(\frac{x}{y+z+1}=\frac{y}{x+z+1}\frac{z}{x+y-2}=x+y+z\)