Expressions vs Equations

Front

Is the following an expression or an equation? 7 + 18 + 4 = 20 + 9

Back

Equation

Front

What operation is 15y?

Back

multiplication

Front

What is the most important difference between an expression and an equation?

Back

an equal sign

Front

Which of the following could be written as an equation? 5 more than the product of 1/2 and b, the product of 5 and b, 5 more than b is 8, the quotient of b and 5

Back

5 more than b is 8

Front

a number added to 19

Back

19 + n

Front

What is an expression?

Back

A mathematical phrase that can contain numbers, variables, and operators, but does not have an equal sign.

Front

What is an equation?

Back

A mathematical statement that asserts the equality of two expressions, containing an equal sign.

Front

What does the variable 'x' represent in an equation?

Back

A placeholder for a number that can change or vary.

Front

What is the purpose of an equal sign in an equation?

Back

To show that the values on both sides of the equation are the same.

Front

If 3x + 5 = 20, what is the value of x?

Back

x = 5