Question 13
Linear and Simultaneous EquationsThe sum of 12 and one third of n is 1 more than twice n. Express the statement in the form of an equation.
- A.12n − 6 = 0
- B.3n − 12 = 0
- C.2n − 35 = 0
- D.5n − 33 = 0
Show the answer and explanation
Answer: D (5n − 33 = 0)
Explanation
12 + n/3 = 2n + 1. Multiply by 3: 36 + n = 6n + 3, so 5n − 33 = 0.