Question

What is the value of the expression 12-15÷3+9 ?

Answer 1

The value of the expression 12 - 15÷3 + 9 is 16, after applying the order of operations: first division, then subtraction and addition.

Step-by-step explanation:

To calculate the value of the expression 12 - 15÷3 + 9, we need to follow the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction). In this expression, we see a division and addition/subtraction.

Let's solve it step by step:

1. First, perform the division: 15÷3 = 5.
2. Next, the expression becomes: 12 - 5 + 9.
3. Then, perform the subtraction and addition from left to right: 12 - 5 = 7 and 7 + 9 = 16.

The final answer is 16.

Answer 2

12 - 15 ÷ 3 + 9

Following BODMAS = Bracket Order Division Multiplication Addition Subtraction

Division comes before Addition and Subtraction, so we carry out Division first.

12 - 15 ÷ 3 + 9, 15 ÷ 3 = 5

12 - 5 + 9

7 + 9

16

I hope you find this explanation useful.