Answer:
5) 7
6) 14
7) 31
Step-by-step explanation:
5) 5a-4=2a+17
3a=21
a=7
6) 2(7)=14
7) 2(7)+17=31
Answer: r = 1 10/11
Step-by-step explanation: The quantities x and y are proportional.
-(28.62-27.56)
= -1.06 or -53/50,-13/50
Answer:
x = {9, -3}
Step-by-step explanation:
- 2| x-3| - 5 = 7
- 2| x-3| = 12
- | x-3| = 6
- x - 3 = ± 6
- ⇒ x= 3+ 6= 9
- ⇒ x= 3 - 6= -3
Or it can be shown as: