Respuesta :

[tex]\begin{gathered} 7\times6+a\times b=50 \\ 42+a\times b=50 \\ a\times b=50-42 \\ a\times b=8 \end{gathered}[/tex]

So here we have different options

[tex]\begin{gathered} 1\times8 \\ 2\times4 \\ 4\times2 \\ 8\times1 \end{gathered}[/tex]