Y=2 by the method of substitution (x is 7).
Integers can only be whole numbers, so she should have said that negative WHOLE numbers are integers.
Answer:
16 5/7
Step-by-step explanation:
this answer is if you mean how much is she NOT using...
Step-by-step explanation:
The original number is x.
The new number is 3x + 5.
We know that 0.5(3x + 5) = 16, so 3x + 5 = 32.
3x + 5 = 32, 3x = 27, x = 9.
Hence the original number is 9.
