2 Step Equation
−9x + 1 = −80
9
2(n + 5) = −2
-6
3r + 3 ≥ −12
r ≥ -5
r > 5
Open Dot at 5. ----->
What does inverse mean? Give an Example.
To do the opposite. (Add/Subtract Multiply/Divide)
−6 + (x/4) = −5
4
7(9 + k) = 84
3
5 + (p/9) ≥ 4
p ≥ -9
h ≤ -9
Closed Dot at -9. <----------
What is an inequality?
< , > , ≥
6 = (a/4) + 2
16
−10 = 10(k − 9)
8
7b + 8 ≤ −83
b ≤ -13
-32 ≥ m
Closed Dot at -32. <--------
What is a variable?
Letter that stands in for a number.
−15 = −4m + 5
5
144 = −12(x + 5)
-17
−3k − 2 < −17
k > 5
2x < 18
Open dot at 9. <--------
What makes an inequality symbol flip directions when solving?
Multiply/Divide by a negative.
−10 = −10 + 7m
0
−243 = −9(10 + x)
17
−8k + 6 ≤ 94
k ≥ -11
-3 > (p/-2)
Open dot at 6. -------->
What makes an open dot when graphing solutions to inequalities?
< , >