Use the order of operations to simplify
SHOW ALL WORK
13+3*6/9-7
18-6/3+12*3
the "/" sign is a division symbol
To simplify these expressions using 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]), follow these steps:
Expression 1: 13 + 3 * 6 / 9 - 7
Step 1: Multiply 3 * 6
3 * 6 = 18
Step 2: Divide 18 / 9
18 / 9 = 2
Step 3: Perform addition and subtraction from left to right:
13 + 2 - 7
Step 4: Add 13 + 2
13 + 2 = 15
Step 5: Subtract 15 - 7
15 - 7 = 8
Therefore, the simplified expression is 8.
Expression 2: 18 - 6 / 3 + 12 * 3
Step 1: Divide 6 / 3
6 / 3 = 2
Step 2: Perform multiplication:
12 * 3 = 36
Step 3: Perform addition and subtraction from left to right:
18 - 2 + 36
Step 4: Subtract 18 - 2
18 - 2 = 16
Step 5: Add 16 + 36
16 + 36 = 52
Therefore, the simplified expression is 52.
unless you have some parentheses, multiplication and division come first. So,
13+3*6/9-7
= 13+18/9-7
= 13+2-7
= 15-7
= 8
18-6/3+12*3
= 18-2+36
= 16+36
= 52