5a+b = 5(6)+3 =3
10-r+5 = 10-(9)+5 =6
Your answer will be B) x=12
1)5x-3x
2) move 9 to the other side (change signs)
3)18+15-9
4) 2x= 24 (divide 2 from both sides
5)x=12
hope this helps
Answer:

Step-by-step explanation:
We have been given that at midnight, the temperature was
. At noon, the temperature was
.
Since our temperature has increased to 23 degree Fahrenheit from -8 degree Fahrenheit, we can represent this increase in temperature as:

Therefore, the expression
represents the increase in temperature.
Cot(-x) = 1 / tan(-x)
Tan(-x) * 1 / tan(-x) = 1