Vocabulary
A letter used to represent an unknown number
Variable
-X/8-11=-2
-72
6 + A/2 = 28
44
24 - 8X = -16
5
4Z + 1 = 41
10
A number that multiplies a variable
coefficient
-Z/5 - 37 = -18
-95
42 = -X/7 +29
-91
-18 + 5Z = 37
11
89 = 8C + 25
8
the opposite operation, to "undo"
inverse
-3.3 = B/0.2 - 2.8
-0.1
2.6 - C/0.2 = -15.9
3.7
-0.2 - 1.4X = 5.4
-4
2.66 = 1.8B + 1.4
0.7
to do the same thing to both sides of the equation to keep it equal
property of equality
Z/0.5 - 3.7 = -6.7
-1.5
40.1 + C/0.1 +3.1
3.7
2.8A - 3.3 = -8.9
-2
2.7C + 2.2 = -2.93
-1.9
number with no variable, fixed number
constant
-1.2 = Y/2.4 - 1.7
1.2
-1.4 = 0.1 + X/1.4
-2.1
6 = -12 - 9/11Y
-22
27 = 2/7X + 5
77