She should have added 3 instead of subtracting because u need to do inverse operation when solving equations.
Answer:
Step-by-step explanation:
1. 2a + 3a + 3 = 8
5a + 3 = 8
5a = 5
a = 1
2. 3a - 2a - 4 = 0
a - 4 = 0
a = 4
3. 4 + 3a + 6 = 16
3a + 10 = 16
3a = 6
a = 2
4. 12a - 6a + 6 = 24
6a + 6 = 24
6a = 18
a = 3
Answer:
−
7
2 ≤ x ≤ 3 <u><em>
or
</em></u> x
≥
5
Step-by-step explanation:
Basically isolate X,
(Sorry, I don't have time to explain deeply)
Hope I helped!! :)
Answer:
Smallest angle : 44°
Step-by-step explanation:
hope it helps ʕ•ᴥ•ʔ