Superflous Symbols
Algebra
Level
3
\[ \begin{array}{c} x(x+y+z)=26 \\ y(x+y+z)=27 \\z(x+y+z)=28 \end{array}\]
How many triplets of real numbers \((x,y,z)\) satisfy the system of equations above?
by
Paola Ramírez