Question

What is the value of the expression when s=2 and t=1.5 -3|5-s3|+3t​

Answer 1

-4.5

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

Algebra I

• |Absolute Value| - makes any negative number positive

Explanation:

Step 1: Define

-3|5 - s³| + 3t

s = 2

t = 1.5

Step 2: Evaluate

1. Substitute in variables: -3|5 - 2³| + 3(1.5)
2. |Absolute Value| Exponents: -3|5 - 8| + 3(1.5)
3. |Absolute Value| Subtract: -3|-3| + 3(1.5)
4. Absolute Value: -3(3) + 3(1.5)
5. Multiply: -9 + 4.5
6. Add: -4.5