Question

Evaluate the expression when X equals three and Y equals negative one. Show your work. 5X plus 4Y over two

Answer 1

`(11)/(2)`

Explanation:

`(5x+4y)/(2)\\=(5(3)+4(-1))/(2)\\=(15-4)/(2)\\=(11)/(2)`

Answer 2

11/2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Explanation:

Step 1: Define

(5x + 4y)/2

x = 3

y = -1

Step 2: Evaluate

1. Substitute: (5(3) + 4(-1))/2
2. Multiply: (15 - 4)/2
3. Subtract: 11/2