Answer:
n = 23
Step-by-step explanation:
-8 + n = 15
-8 + n + 8 = 15 + 8
n = 23
Answer: n = 23
I assume that this 'something' has a rectangular shape. If its width is 5m, than the length of two sides is 2 * 5 = 10m. Now if the perimeter is 22 square meters, then the lenght of another two sides is 12 / 2 = 6.
12 because 22 (the perimeter) - 10 (lenght of the 2 sides) = 12 (length of another 2 sides).
Answer:
A picture of the problem might help
You need to subtract 6 from 24 because it’s the inverse operation of addition which will help you find the unknown value, x.