Expressions and Equations

Front

What is an expression?

Back

An expression is a combination of numbers, variables, and operators (like + and -) that represents a value but does not have an equality sign.

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing an equals sign (=).

Front

What is a term in an expression?

Back

A term is a single mathematical expression that can be a number, a variable, or a combination of both multiplied together.

Front

What is a coefficient?

Back

A coefficient is a numerical factor in a term that multiplies a variable. For example, in 3x, 3 is the coefficient.

Front

What is a variable?

Back

A variable is a symbol (often a letter) that represents an unknown value in mathematical expressions and equations.

Front

What is a constant?

Back

A constant is a fixed value that does not change. For example, in the expression 2x + 5, the number 5 is a constant.

Front

Simplify the expression: 4(x + 3) - 5

Back

4x + 7

Front

Solve for x: x + 8 = 15

Back

x = 7

Front

What is the coefficient in the expression x + y?

Back

1

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equals sign and represents a value, while an equation states that two expressions are equal.