Chalkboard

Solve the equations embedded in the jpeg to find the flag. Solve this problem before solving my Scope challenge which is worth 100 points. math.jpg

$ strings 972
JFIF
The flag for this challenge is of the form:
CTFlearn{I_Like_Math_x_y}
where x and y are the solution to these equations:
3x + 5y = 31
7x + 9y = 59
-- snip --;

Flag

CTFlearn{I_Like_Math_2_5}