Evaluate Algebraic Expressions

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols (like +, -, *, /).

To evaluate an algebraic expression means to substitute the values of the variables into the expression and perform the operations to find a numerical result.

2(3) + 3(2) = 6 + 6 = 12.

2(-2) + 3(4) - 3 = -4 + 12 - 3 = 5.

2(2) + 3(4) = 4 + 12 = 16.

a + b + c = 2 + 1 + 5 = 8.

2(2) + 3(-3) = 4 - 9 = -5.

2(6 + 3) - (-1) + 2(2) = 2(9) + 1 + 4 = 18 + 1 + 4 = 23.

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.

A coefficient is a numerical factor that multiplies a variable in an algebraic expression.