Question

Fifteen more than half a number is 0. Find the number.

Answer 1

15 more (+15)
than half a number (n/2)
is 0 (=0)

n/2 +15 = 0
use your PEMDAS strategy

n/2 +15 = 0
-15. -15

n/2 = -15
x2 x2

n = -30

Now check, replace -30 in for n

-30/2 +15 = 0

-15 + 15 = 0

let me know if you have any questions :)