A letter used to represent an unknown number
Example: 25 +m = 100
What is a variable?
m/5+4=12
What is 40 ?
z/6 - 8 = 2
What is 60?
The opposite of addition
What is subtraction?
23= - 7+ 5m
What is 6 ?
y/8 + 11 = 13
What is 16 ?
- 15 + y/9 = 5
What is 180 ?
What mathematical operation does 4r mean?
a) 4 plus r c) 4 times r
b) 4 subtract r d) 4 divided by r
What is
c) 4 times r
65 = -2r + 39
What is -13 ?
21 + k/8 = 97
What is 608 ?
z/6 - 14 = 3
What is 102 ?
A number right in front of a variable
example: 8m
What is a coefficient?
- 71 + 4j = 29
What is 25 ?
g/11 + 37 = 128
What is 1001 ?
- 18 - y/9 = 52
What is -630 ?
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-19b + 314 = 1663
What is -71 ?
234 = 21q - 39
What is 13 ?
596 - w/2 = 1,639
What is -2682?
d/10 - 83 = 64
What is 1470 ?