Equations

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing one or more variables.

Front

What does it mean to isolate a variable in an equation?

Back

To isolate a variable means to manipulate the equation so that the variable is on one side of the equation by itself.

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

If 2x = 10, what is the first step to solve for x?

Back

Divide both sides by 2.

Front

What does it mean to 'undo' an operation in an equation?

Back

To 'undo' an operation means to perform the inverse operation to revert the equation to its original state.

Front

What is the solution to the equation x + 5 = 12?

Back

x = 7.

Front

What is the first step to solve the equation 3b = 15?

Back

Divide both sides by 3.

Front

What is a variable in an equation?

Back

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

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.