Vocabulary Vault
A letter that represents an unknown number.
What is a variable?
-5 + (-4)
What is -9?
3x + 5x
What is 8x?
x + 9 = 20
What is x = 11?
2x + 1 = 11
What is x = 5?
The number multiplied by a variable.
What is a coefficient?
-3 * 8
What is -24?
4(2x - 3)
What is 8x - 12?
4y = 24
What is y = 6?
3x -4 = 17
What is x =7?
Operations that undo each other, like addition and subtraction.
What are inverse operations?
10 - (-7)
What is 17?
-2(x + 5)
What is -2x -10?
m - 8 = -3
What is 5?
m/2 + 5 = 9
What is m = 8?
A math sentence that contains an equal sign.
What is an equation?
-40/-8?
What is 5?
5x + 7 - 2x - 3
What is 3x + 4?
x/3 = -5
What is -15?
10 - 2x = 16
What is x = -3?
The name of the property used to turn 3(x + 5) into
3x + 15.
What is the distributive property?
-2 + 8 - 10?
What is -4?
2(3x + 4) - 5x
What is x + 8?
-6x = 30
What is -5?
A gym charges $20 to join plus $10 per month. If you spend $70, how many months have you been a member?
What is 5 months?