Question
Which of the following is equivalent to 3 (x + 5) − 6 ?
- 3 −3 x
- 3 −1 x
- 3x + 9
- 15 − 6
The correct answer is: 3x + 9
HINT – Open the brackets
SOLUTION - The given equation is 3 (x + 5) − 6
Opening the brackets we get, 3 x + 3 5 – 6
= 3x + 15 – 6
= 3x + 9
So, option C is correct
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