Question

Which of the following is equivalent to 3(y - 1+ 2y)?

1. 3y - 9
2. 6y - 3
3. 9y- 3
4. 3y - 3

Answer 1

3) 9y-3

Explanation:

3 (y - 1 + 2y)

3×y - 3×1 + 3×2y

3y - 3 + 6y

rearranging like terms together:

3y + 6y - 3

9y - 3

Answer 2

3, 9y-3

Explanation: