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Miscellaneous
Solving 1
Solving 2
Solving w/Fractions
Division & Subtraction
100

A letter used to represent an unknown number

A variable

100

k + 5 = 17

k=12

100

3a - 5 = 4

x=3

100

m/5 =10

m=50

100
z/6 - 8 = 2
What is 60?
200

The opposite of addition

subtraction

200

x - 11 = -20

x = -9

200

5m - 7 = -22

x=-3

200

5y=-10

y=-2

200
y/9 - 15 = 5
What is 180 ?
300

The four basic operations

addition, subtraction, multiplication, and division

300

2r + 10 = 20

r=15

300

43=- 5+6x

x=8

300

18x=9

x=9/18 or 1/2

300
z/6 - 14 = 3
What is 102 ?
400

A number right in front of a variable

a coefficient

400

-26=-5-y

y=21

400

4j - 71 = 29

j=25

400

x/3+4=10

x=18

400
y/9 - 18 = 52
What is 630 ?
500

The best math teachers ever!!!!

Ms. Koe and Ms. Caplan

500
19b + 314 = 1663
What is 71 ?
500

In words, what would you do to solve:

21q - 39 = 234

First, add 39.

Then, divide by 21.

500

What is Ms. Caplan's favorite color?

???

500
d/10 - 83 = 64
What is 1470 ?