Answer:
14
Step-by-step explanation:
12:6=2
12+2=14
so her brother it's 14 years old
Answer: x=1
Step-by-step explanation:
You need to open up the parenthesis so you multiply every term inside the parenthesis by -7.
1. -7x + 14 + 1 = 15 -7x
2. Combine like terms -7x + 15 = 15-7x
The two sides of the equation are the same so that means that x=1
If it is winter then it is cold inside
