Because like terms you add or subtract together to make it easier to do the problem. just like you do with whole numbers. you add an subtract to make the answer simpler.
Answer:
The perimeter of the given rectangle = 20 units.
Step-by-step explanation:
Length of the rectangle = 6 units
The width of the rectangle = 4 units
Now Perimeter of the Rectangle = 2 ( LENGTH + WIDTH)
⇒Here, perimeter = 2 ( 6 units + 4 units ) = 2 x ( 10 units)
= 20 units
Hence, the perimeter of the given rectangle = 20 units.
58-13=45 45/9=5 Carlos rented the bike for 5 hours