\(\frac{x-5}{3}=\frac{y-4}{4}=\frac{z-3}{5}=\frac{x-5+y-4+z-3}{3+4+5}=\frac{36-12}{12}=\frac{24}{12}=2\)
\(\Rightarrow\hept{\begin{cases}x-5=6\\y-4=8\\z-3=10\end{cases}}\Rightarrow\hept{\begin{cases}x=11\\y=12\\z=13\end{cases}}\)
Tìm x, y , z biết
1. \(\frac{x+5}{3}=\frac{y+4}{4}=\frac{z+3}{5}\)và x+y+z=24
2.\(\frac{x-5}{3}=\frac{y-4}{4}=\frac{z-3}{5}\)và x+y+z=36
tim x,y,z biet \(\frac{3.X-5.Y}{2}=\frac{5.Y-3.Z}{3}=\frac{3.B}{4};X+Y+Z+17\)=17
tim x,y,z khi
\(\frac{x}{7}=\frac{y}{3}va\)x-24=y
\(\frac{x}{5}=\frac{y}{7}=\frac{z}{2}\)va y-x=48
\(\frac{x}{2}=\frac{y}{3};\frac{y}{4}=\frac{z}{5}\)va x-y- z=28
\(\frac{x}{3}=\frac{y}{5}=\frac{z}{7}\)va 2x+3-z=-14
\(\frac{x+1}{3}=\frac{y+2}{-4}=\frac{z-3}{5}va3x+2y+4z=47\)
tim x, y, z biet
mk tk
mk gap
giup mk
\(\frac{x-5}{3}\)=\(\frac{y-4}{4}\)=\(\frac{z-3}{5}\)và x+y+z=36 tìm x,y,z
\(\frac{x-1}{3}=\frac{y-2}{4}=\frac{z-3}{5}\) va x+y+z=30.Tim x,y,z
\(\frac{x-1}{2}=\frac{y-2}{3}=\frac{z-3}{4}vax-2y+3z=14\)
de bai la tim x, y, z biet
giup mk
mk tk
mk dag voi
\(\frac{x}{2}=\frac{y}{3}=\frac{z}{4}vax+z=28\)
\(\frac{x-5}{3}=\frac{y-4}{4}=\frac{z-3}{5}\) và x + y + z = 36
