adding equations
a + 3 = 8
5
a - 5 = 4
9
a/8 = 7
56
5a = 25
5
a/7 = 9
-63
A math sentence with an equal sign.
WHAT IA AN EQUATION?
a + 8 = 92
84
a - 21 = 49
70
-68 + a = 18
86
25a = 625
25
a/8 = 12
The answer to an equation that makes the equation true.
What is a solution?
a + 21 = 76
55
a - 180 = 300
480
360 - a = 270
90
18a = 486
27
a/10 = 15
150
The main goal to solve an equation is to __________ the variable.
What is isolate?
a + 120 = 30
-90
a - 1,820 = 980
2,800
a + 24 = 35
11
108a = 2268
21
a/8 = 13
104
When we do the opposite of addition, subtraction, multiplication and division it is called _________ operations.
What is inverse?
a + 9 = 23
14
28 - a = 4
24
a -18 = 74
92
14a = 112
8
a/12 = 14
168
The first step in a two step equation.
What is add or subtract?