so.. the number is "x", now, the product of "x" and 7 is just 7*x or 7x.
3 more than that? is just 7x + 3
so, we know is less than 26, 7x + 3 < 26
[tex]\bf 7x+3\ \textless \ 26\implies 7x\ \textless \ 26-3\implies 7x\ \textless \ 23\implies x\ \textless \ \cfrac{23}{7}
\\\\\\
\boxed{x\ \textless \ 3\frac{2}{7}}\qquad \qquad 3\frac{2}{7}\implies \cfrac{3\cdot 7+2}{7}\implies \cfrac{23}{7}[/tex]
