What is
-16 + -8 x -2 -(4-9)= ?
I did it and got -72. I want to know if I'm right. I'm so confused with operations. Would you subtract the numbers and add, then multiply?
Remember PEMDAS
parentheses
exponents
multiply
divide
add
subtract
http://www.mathsisfun.com/operation-order-pemdas.html
-16 + -8 x -2 -(4-9)=
Parentheses: (4 - 9) = -5
-16 + -8 x -2 -(-5)=
Exponents: none
Multiply: -8 * -2 = 16
-16 + 16 -(-5)=
Divide: none
Add/Subtract
-16 + 16 + 5 = 5
Thank you
To solve this expression, you should follow the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right). Let's break it down step by step:
1. Start by evaluating what is inside the parentheses:
(4-9) becomes -5.
2. Next, perform multiplication and division from left to right:
-8 x -2 equals 16.
3. Now, substitute the values back into the expression:
-16 + 16 - (-5)
4. Moving to addition and subtraction from left to right:
-16 + 16 = 0
0 - (-5) = 0 + 5 = 5
So, the final answer is 5, not -72. It seems like there was a mistake made during calculation. Double-check your steps and make sure you correctly followed the order of operations, particularly when performing multiplication and subtraction.