Evaluating Algebraic Expressions Calculator
This Evaluating Algebraic Expressions Calculator helps you find the value of an algebraic expression after substituting given numbers for the variables. First replace each variable with its assigned value, then follow the correct order of operations to simplify the expression. Make sure every substitution is written carefully before calculating. It is a simple way to check answers, understand expression evaluation, and practise basic algebra step by step.
Step-by-step method
- Identify the expression and the given variable values.
- Substitute the values into the expression and evaluate.
Example 1: 2x + 3y, x=3, y=5
Step 1 - Identify the expression and the given variable values.
In this problem: The expression is 2x + 3y and the given values are x=3, y=5.
Step 2 - Substitute the values into the expression and evaluate.
In this problem: Substitute the values into the expression and evaluate.
Final answer: 21
Example 2: 5a^2 − 2b, a=-1, b=4
Step 1 - Identify the expression and the given variable values.
In this problem: The expression is 5a^2 − 2b and the given values are a=-1, b=4.
Step 2 - Substitute the values into the expression and evaluate.
In this problem: Substitute the values into the expression and evaluate.
Final answer: -3