A letter used to represent an unknown number.
What is a variable?
2k + 5 = 17
What is 6 ?
3a - 5 = 4
What is 3 ?
m/5 + 4 = 12
What is 40 ?
4x + 2x = 48
What is 8?
The inverse of addition.
What is subtraction?
2a + 11 = 35
What is 12?
5m - 7 = 23
What is 6 ?
z/6 - 8 = 2
What is 60?
15x - 5x = 110
What is 11?
The inverse of division.
What is multiplication?
2r + 39 = 65
What is 13 ?
43 = 6k - 5
What is 8 ?
y/8 + 11 = 13
What is 16 ?
12 - x = 46
What is -34?
The number right in front of the variable.
What is a coefficient?
-3x+5=20
What is -5?
4j - 71 = -29
What is 10.5?
y/9 - 15 = 5
What is 180 ?
- x + 15 = 5
What is 10?
Multiplying a fraction by this, is equal to 1.
What is its reciprocal?
1/2x + 7 = -16
What is -46?
1/3x - 8 = 7
What is 45?
64 = d/10 - 83
What is 1470
Daily Double! (Special Case)
What is 40?