Answer:
Her son is 14 years old
Step-by-step explanation:
5+3x=47
3x=47-5
3x=42
3x÷3=42÷3
x=14
150-15d=c
Because 150- 15 times the number of days will give you the answer no matter what the number of days are
I think that it would be 5x+3.
Answer: 48