Alucard wants to buy materials for his Math project. If he buys an illustration board and a marker, he needs to pay P22.00. But if he buys 2 illustration boards and a marker he will pay P37.00?

29. What is the system of the linear equations in the problem?
a. x + y = 22
b.x-y=22
C. x + y = 22
d. x - y = 22 2x+y=37 2x+y=37 x + 2y =
x + 2y = 37 x + 2y = 37 + 30.

37.What ordered pair will make the equations true?
a. (5,17)
b. (10, 12)
c. (15,7)
d. (20,2)​