Áp dụng dãy tỉ số bằng nhau, ta có:
\(\frac{1+2y}{18}=\frac{1+6y}{6x}=\frac{1+2y+1+6y}{18+6x}=\frac{2+8y}{18+6x}=\frac{2.1+4y}{2.9+3x}=\frac{1+4y}{9+3x}\)
\(\Rightarrow\frac{1+4y}{9+3x}=\frac{1+4y}{24}\Rightarrow9+3x=24\)
\(3x=15\)
Vậy: \(x=5\)
tim so huu ti x biet
\(\frac{x}{y^2}\)=2 va \(\frac{x}{y}\)=16 (voi y khac 0)
\(\frac{1+2y}{18}\)=\(\frac{1+4y}{24}\)=\(\frac{1+6y}{6x}\)
tìm x,y biết
\(\frac{1+2y}{18}=\frac{1+4y}{24}=\frac{1+6y}{6x}\)
Tìm x,y,z biết:
\(\frac{1+2y}{18}=\frac{1+4y}{24}=\frac{1+6y}{6x}\)
Tìm x,y biết \(\frac{1+2y}{18}=\frac{1+4y}{24}=\frac{1+6y}{6x}\)
Tìm x,y
\(\frac{1+2y}{18}=\frac{1+4y}{24}=\frac{1+6y}{6x}\)
Tìm x;y biết: \(\frac{1+2y}{18}=\frac{1+4y}{24}=\frac{1+6y}{6x}\)
Tìm x,y thỏa mãn\(\frac{1+2y}{18}=\frac{1+4y}{24}=\frac{1+6y}{6x}\)
Tìm x, y thỏa mãn \(\frac{1+2y}{18}=\frac{1+4y}{24}=\frac{1+6y}{6x}\)
Tìm x,y,z biết: \(\frac{1+2y}{18}=\frac{1+4y}{24}=\frac{1+6y}{6x}\)