Hello,
I'm having trouble with PEMDAS, can you all help? Thanks.
[4 - (6 - 5(2 - 5) + 5)] + 7
2-5=-3
-3+5=2
4-2=2
Can you find the next step? Because the next step will give you your answer! PEMDAS isn't too hard, you'll get the hang of it eventually! Just try not to ask for answers, and just help.
:D
~Dog_Lover
[4-(6-5(2-5)+5)] + 7 = [4-(6 + 15 + 5)] + 7 = [4 - 26] + 7 = -22 + 7 = -15.
Of course! I'd be happy to help you with PEMDAS.
PEMDAS is an acronym that stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right). It is a set of rules that determines the order of operations in arithmetic expressions.
Let's break down the expression step by step using the PEMDAS rule:
Step 1: Parentheses
Start by simplifying the expression within the innermost parentheses.
(2 - 5) = -3
So the expression becomes:
[4 - (6 - 5(-3) + 5)] + 7
Step 2: Multiplication
Multiply the -3 by 5, which gives you -15.
The expression becomes:
[4 - (6 + (-15) + 5)] + 7
Step 3: Addition and Subtraction within Parentheses
Add or subtract the numbers within the parentheses from left to right.
(6 + (-15) + 5) = -4
The expression becomes:
[4 - (-4)] + 7
Step 4: Subtraction
Subtract -4 from 4.
4 - (-4) = 8
The expression becomes:
[8] + 7
Step 5: Addition
Add 8 and 7 together.
8 + 7 = 15
So, the final result of the expression is 15.