What is the solution to this system of equations? y= -5/3x+12
y=3/2x-7

(must be in ordered pair)
i need an explanation please!
will mark brainliest if correct! :)

Isabelle is mixing red and blue paint to make purple paint she adds 3/10 of a fluid ounce of red to 12/25 of a fluid ounce of blue to make 1 1/30 fluid ounces of purple how many fluid ounces of red paint ounces of red paint will she need to make 3 fluid ounces of purple paint