A letter used to represent an unknown number.
What is a variable?
2k + 5 = 17
What is 6?
3a - 5 = 4
What is 3?
-2x + 9 = 35
What is -13?
-3x - 6 = 18
What is -8?
The inverse of multiplication.
What is division?
2a + 11 = 35
What is 12?
5m - 7 = 23
What is 6?
-5x + 20 = 10
What is -4?
-7x - 2 = 54
What is -8?
The four basic operations
What is multiplication, division, addition, and subtraction?
65 = 2r + 39
43 = 6k - 5
What is 8?
12 = -x + 5
What is -7?
-7 = -x - 3
What is 4?
A number directly in front of a variable.
What is a coefficient?
171 = 12s + 27
What is 12?
4j - 71 = 29
What is 25?
34 = -2x + 8
What is -13?
188 = -9x - 1
What is -21?
A mathematical statement that two things are equal.
1663 = 314 +19b
What is 71?
234 = -39 + 21q
What is 13?
92 = 28 - 32x
What is -2?
47 = -5 - 13x
What is -4?