Write the algebraic expressions for the following.

Question

Please check and correct me if I'm wrong!!

1. 3 less than 5 times a number.
Answer: 5x-3

2. 18 fewer than half a number.
Answer: 1/2x-18

3. 3 more than the quotient of a number and 2.
Answer: x/2+3

4. 4 times the difference of a number and 1.
Answer: 4(x-1)

Answer 1

Perfect, well done!

Answer 2

Parentheses should be in 3.

(x/2) + 3