M + 5n = 7
subtract 5n from each side
m = -5n + 7
A = a^2.....where " a " is the length of one side
A = 79
79 = a^2...take sqrt of both sides, eliminating the ^2
sqrt 79 = a
8.89 = a
so the length of one side is approximately 8.89 ft <==
Start your line at y=15 and for every number on x go up one square
