Answer:
7b-12
Step-by-step explanation:
12b-5b-7-5
7b-12
4x - 5y = 24
4(6) - 5(0) = 24
24 - 0 = 24
24 = 24 (correct)....so (6,0) is a solution
4(1) - 5(-4) = 24
4 + 20 = 24
24 = 24 (correct)...and (1,-4) is a solution
Is there any way you could provide more information, a picture or something could be really helpful.