Question

What is the sum of the following algebraic expressions: 4x -4y + 5, -x + 5y - 7 and 5x + y + 12? *
2x + y + 10
8x + 2y + 10
6x + 5y + 12
None of these

Answer 1

Answer:

8x + 2y + 10

Step-by-step explanation:

Just add them like normal number except add the like numbers, like 4x - x + 5x,  -4y + 5y + y, and 5 - 7 + 12.

4x - 4y + 5 - x + 5y - 7 => 3x +  y -  2

5x + y + 12 + 3x - y - 2 => 8x + 2y + 10