Answer:
(4,10)
Step-by-step explanation:
Input: (3,9)
(3+1, 9+1)
Output: (4,10)
Answer:
45
Step-by-step explanation:
x + x + 2x = 180 {Sum of angles of a triangle}
4x = 180 {Divide both sides by 4}
x = 180/4
x = 45
For this case we have the following functions:

The first thing we must do is calculate the sum of functions or equivalently:

We have then:

To complete the sum, we must add the terms whose exponents are equal.
We have then:

Then, we evaluate the function for x = 2:

Rewriting we have:
Answer:
Answer: -9 1/3
Step-by-step explanation: 2x + 1 + x = -27
3x +1 = =-27
3x = -28
x = -9 1/3