The equation \( 5b = 10 \) can be rewritten as two equations joined by "and" as follows:
\( 5b \geq 10 \) and \( 5b \leq 10 \).
This expresses the idea that \( 5b \) is equal to 10 with inequalities representing that it must be at least or at most equal to 10. If you would like a different representation, please let me know!