Answer:
14n
Step-by-step explanation:
When you combine like terms, you don't change the final answer. 5 + 9 is 14, so 5n + 9n is 14n.
Answer:
I would believe that 5x - 12 = 3x + 30 should be the answer (simplify for x - literal equation).
Step-by-step explanation:
The bottom is a right angle, so both side angles are equal.
This shows that 5x - 12 = 3x + 30.
Solve for x.