Question

Find 8x+y when x=2 and y=5.

Answer 1

21

Explanation:

8x+y, when x=2 and y=5,

then 8*2+5. Because the 2 is right next to the 8, it isn't '82', but '8*2'

According to PEMDAS, multiplication is done first, so

8*2= 16,

16+5, which is 16+5= 21