Expressions and Equations

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

What is an equation?

Back

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

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is the first step in solving the equation 8h = 96?

Back

Divide both sides of the equation by 8 to isolate the variable h.

Front

What is the inverse operation of addition?

Back

Subtraction is the inverse operation of addition.

Front

What is the inverse operation of multiplication?

Back

Division is the inverse operation of multiplication.

Front

Translate the phrase '4 more than x' into an expression.

Back

x + 4 is the expression for '4 more than x'.

Front

What is a variable in mathematics?

Back

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

Front

What does it mean to isolate a variable?

Back

To isolate a variable means to manipulate an equation so that the variable is on one side and all other terms are on the other side.

Front

What is a coefficient?

Back

A coefficient is a numerical factor in a term of an expression, often multiplying a variable.