Adding one step equations (+)
s + 5 = 5
0
a - 5 = 4
9
a - 10 = 5
15
what is the inverse of SUBTRACTION (-)
ADDITION (+)
Give an example of a variable
(any letter)
varied
25 + a = 42
17
a - 18 = 30
48
a - 68 = 18
86
What is the first step we do to the variable when solving?
a + 17 = 20
ISOLATE
Why do we need to write on both sides of an equation?
So it is balanced.
p + 7 = 8
1
a - 180 = 300
480
n - 14= 24
38
whats is the inverse of ADDITION (+)
SUBTRACTION (-)
Give an example of an equation.
Varied
a + 82 = 97
15
s - 51 = -12
39
r + 6 = -18
-24
How do you check your answer in an equation?
Substitute or put your answer back into the original problem.
What is the difference between an expression and an equation?
An expression you cannot solve.
An equation has an equal sign with a solution.
3 + a = 8
5
a - 12= 10
22
12 + a = 19
7
what is the inverse of -700
+700
What is the inverse of the inverse of -900
-900