Unit 3 Flashcard Practice

Front

The Law of Equations states that you must do the _________ to both sides of the equation.

Back

same operation

Front

Which equation represents the following sentence? 'Twice a number less than ten is fifty'

Back

10 - 2x = 50

Front

Which equation would have the same solution as the following equation? 4x + 4 = 20

Back

2x + 18 = 26

Front

How would you solve: 2x - 1 = 7?

Back

add 1 to both sides, then divide both sides by 2

Front

3x - 5 + 3x is an __________.

Back

expression

Front

What is an equation?

Back

A mathematical statement that asserts the equality of two expressions.

Front

What is a variable in mathematics?

Back

A symbol used to represent an unknown value.

Front

What does it mean to isolate a variable?

Back

To manipulate an equation to get the variable on one side by itself.

Front

What is the solution to the equation 5x = 20?

Back

x = 4

Front

What is the distributive property?

Back

a(b + c) = ab + ac