Basic Algebra

Front

What is a variable in algebra?

Back

A symbol, often a letter, that represents a number in an equation or expression.

Front

What does it mean to solve an equation?

Back

To find the value of the variable that makes the equation true.

Front

What is the equation for finding the product of a number and 7 if the product is 56?

Back

n x 7 = 56.

Front

If n x 7 = 56, what is n?

Back

n = 8.

Front

What is the equation for finding a number r if r - 9 = 4?

Back

r - 9 = 4.

Front

If r - 9 = 4, what is r?

Back

r = 13.

Front

What does it mean if a number is a solution to an equation?

Back

It means that when you substitute the number for the variable, the equation is true.

Front

What is the solution to the equation x + 5 = 10?

Back

x = 5.

Front

What is the solution to the equation 2x = 10?

Back

x = 5.

Front

If j = 4, what is the value of 8j?

Back

32.