Answer:
7c - 2
Step-by-step explanation:
If you read through what it says carefully, it says that 7 times a number (c) is subtracted by 2.
3(x-9)=-3
3x-27=-3
3x=24
X=8
Check: 3(8-9)=-3
So your number is 8
Answer:
x = 5
Step-by-step explanation:
2x - 5 = 5
To solve this, we need to isolate x in all terms. First off, add 5 to both sides:
2x - 5 = 5
2x = 10
Divide 2 by both sides:
2x = 10
x = 5
Answer:
D
Step-by-step explanation:
Prime numbers are numbers that can be divided without a remainder. So 2181 is divisible by 3 and 727 and there is no remainder.
