What is an apple? How does it benefit us?

Apples are incredibly good for you, and eating them is linked to a lower risk of many major diseases, including diabetes and cancer. What's more, its soluble fiber content may promote weight loss and gut health. These round and juicy fruits are high in fiber and vitamin C, and they are also low in calories, have only a trace of sodium, and no fat or cholesterol. "Apples are high in polyphenols, which function as antioxidants,” said Laura Flores, a nutritionist based in San Diego.

i did not type this :)

substitute y = 2x - 4 to x + 2y = 12:

x + 2(2x - 4) = 12     use distributive property

x + (2)(2x) + () = 12

x + 4x - 8 = 12     add 8 to both sides

5x = 20     divide both sides by 5

x = 4

put the value of x to the first equation:

y = 2(4) - 4

y = 8 - 4

y = 4