Vocabulary
Combining Like Terms (Addition)
Combining Like Terms (Subtraction)
Variables on Both Sides
Geometric Figures...
Solve for "x"
100
The parts of an equation (or expression) Example: 4x - 7 + 3x + 11 = 25
What is a term?
100
8a + 15a + a + 9 = 81
What is a = 3
100
21b - 11b - 10 - 12b = -20
What is b = 5
100
3x + 2 = 6x - 1
What is x = 1
100

**DOUBLE JEOPARDY** A triangle has a perimeter that equals 17. The side lengths are: x, 2x, 4x- 4

x = 3

200
Terms that can be combined. Example: 3x + 9x or -7 + 11
What are like terms?
200
5x + 35 + 3x + 2 = 45
What is x = 1
200
12c - 6c - (-36) = 72
What is c = 6
200
**DOUBLE JEOPARDY** 16x + 12 = 9x + 33
What is x = 3
200

The perimeter of a square is 40.   Each SIDE = x + 8

What is x = 2

300
**DOUBLE JEOPARDY** A mathematical phrase that contains numbers, operations, and/or variables (but no = sign). Example: 5x + 4x + 5 - 2x
What is an expression?
300
32 + 12t + 16t + 8 = 96
What is t = 2
300
5z - 55 - 26 - z = 19
What is z = 25
300
2x - 12 = x + 3
What is x = 15
300

A rectangle has a perimeter of 42.   LENGTH = x + 7,  WIDTH = x.

What is x = 7

400
The number attached to a variable like 2x 3y 6m
What is a coefficient?
400
**DOUBLE JEOPARDY** 6p + 32 + 16p + 2 + 4p = 34
What is p = 0
400
-7d - (-40) + 8d = 35
What is d = -5
400
22x - 24 = 14x - 8
What is x = 2
400

An equilateral triangle has a perimeter of 17. SIDE #1 = x, SIDE #2 = x - 2, and SIDE #3 = x + 7.

What is x = 4

500
The number part of expressions/equations that stand alone.
What is a constant?
500
m + 20m + 25m + 6 = 52
What is m = 1
500
**DOUBLE JEOPARDY** -15j - 18 - 24j - 21 = 0
What is j = -1
500
5x - 26 = 13x - 2
What is x = -3
500

A trapezoid has a perimeter of 106.   BASE #1 = x - 1. BASE #2 = x + 7.   SIDES = x

What is x = 25

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