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Vocabulary
Word Problems
100
x + 8 = -2
What is x = -10?
100
2x + 5 = 23
What is x = 9?
100

What is a variable?

A symbol (like x) that represents an unknown number

100
Your sister bought pencils at $0.39 each and a notebook at $1.19. The total cost was $3.92. How many pencils did she buy?
What is 0.39p + 1.19 = 3.92? and p = 7 pencils
200

y - 5 = 11

What is y= 14?

200

m/2 + 7 = 21

What is m= 28?

200

What is an equation?

A math sentence with equal sign

200

A football team gained 25 yards on one play and then lost 32 yards on the next play. What was their total loss or gain of yardage?

What is a loss of 7 yards?

300
-12 x = 132
What is x= -11?
300
49 = 5y - 26
What is y = 15?
300

What does “inverse opertation” mean?

Opposite operations

300
Eight less than twice a number is sixteen less than three teims the number. What is the number?
What is 2x - 8 = 3x -16? and x = 8?
400
p/4 = -8
What is p = -32?
400

2w + 1 = 11

What is w= 5?

400

What is a solution to an equation?

The value that makes the equation true

400
Your brother earned $6 less than you did working last Saturday. If you both earned a total of $60, how much did each of you earn?
What is your brother earned $27 and you earned $33?
500
-5 + w = -2
What is w = 3?
500
-5 + 10b = -75
What is b=-7?
500

What does it mean to “isolate the variable”?  

Get the variable alone on one side of the equation

500
The Empire State Building is 1250 feet tall. This is 140 feet more than twice the height of the Washington Monument. How tall is the Washington Monument?
What is 555 feet tall?
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