Solve $7x + 3 < 5x + 9$. Show the graph of the solutions on a number line.

(N/A) Given inequality: $7x + 3 < 5x + 9$
Subtract $5x$ from both sides: $2x + 3 < 9$
Subtract $3$ from both sides: $2x < 6$
Divide by $2$: $x < 3$
The solution set is all real numbers less than $3$. The graphical representation on the number line is a ray starting from $3$ (with an open circle at $3$ to indicate that $3$ is not included) extending to the left towards negative infinity.