What is the value of 42 – 2(3 • 5 + 1)?
(1 point)
Responses
8
8
1
1
–16
–16
–21
The value of 42 – 2(3 • 5 + 1) is -16.
To find the value of the expression, we need to follow the order of operations, which is also known as PEMDAS (parentheses, exponents, multiplication and division from left to right, and addition and subtraction from left to right).
Step 1: Start by solving the expression inside the parentheses (3 • 5 + 1).
- Multiply 3 and 5 first: 3 * 5 = 15
- Add 1: 15 + 1 = 16
Step 2: Substitute the result (16) into the original expression: 42 - 2(16)
Step 3: Replace the multiplication with the result:
- Multiply 2 and 16: 2 * 16 = 32
Step 4: Substitute this multiplication back into the expression: 42 - 32
Step 5: Finally, subtract: 42 - 32 = 10
Therefore, the value of 42 - 2(3 • 5 + 1) is 10.