Review multi-step equations

Trivia! (and Riddles)

100

Riddle: What did the ocean say to the sand?

Nothing. It waved

200

Trivia: What is the main profession of Nintendo character Luigi?

A plumber

300

DOUBLE JEOPARDY

Riddle: You can find this in Earth, Jupiter, Mercury, and Mars, but not in Venus or Neptune. What is it?

The letter R

400

Trivia: what is the national animal of Scotland

a unicorn

500

Riddle: I am always old, but sometimes also new. While I’m never sad, sometimes I am blue. I am never empty, but only sometimes full. I never push, but I always pull. What am I?

The moon

Vocabulary

100

A _____ is a letter that has an unknown amount or value.

A variable

200

___    ___ have the same variable or no variable

like terms 

300

A ______ is a number WITHOUT a variable

constant

400

A _________ is a number WITH a variable

Coefficient 

500

The four steps to solving multi-equations are 1. ___ 2. ___ 3.____ 4._____.

The four steps to solving multi-equations are 1. Simplify (Distributive Property & Combine like terms) 2. Get the variable on left side. 3. add/subtract constants 4. multiply/divide coefficients 

1-2 Step Equations

100

-7m = 63

m=-9

200

n/56 = -8

n=-7

300

-2k -4 = 8

k =-2

400

h/-3 + 6 = -4

h = 30

500

DOUBLE JEOPARDY

x - 9/5 = -10

x=-41 / 5   or -8.2

Combining Like Terms

100

6m – 5m + 1

m+1

200

-24x+30x=6

6x=6

300

9-18a-27a= 5

9-45a= 5

400

DOUBLE JEOPARDY

-4 (-5a - 3) +11 - 2a + 9 + 12 = 11 - (2a + 18a) + 23

18a + 44 = 34 + 16a

OR

a = -5

500

b - 4 + 2 (b-3) +6 - 2b

b - 4

Multi-step Equations

100

8x - 3x + 12 = 5(x + 2)

15 = 10

No solution

200

2x + 3x + 2 = 4x - 8

x = -6

300

4(2x - 3) = 8 + 3(2x - 10)

x = -5

400

6x - 2(2x + 3) = 18

x = 12

500

DOUBLE JEOPARDY

2(2x + 4) = 3x + x + 8

8 = 8

All real numbers/ infinity