Answer:
7c-2
Step-by-step explanation:
7 times a number c tells us that we want to multiply c by seven. 2 less than tells us that we want to subtract 2 from 7c.
2nd one
5th one
are both correct
65-9=56
56 divided by 8 is 7
So they will need 7 tents
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:
T= C(7+AB)
T = 7C + ABC
T - 7C = ABC
(T - 7C)/BC = A
