Persamaan 2p+3q =2 dan 4p-q=18nilai 5p-2q

4p - q = 18
q = 4p - 18

2p + 3q = 2
2p + 3(4p - 18) = 2
2p + 12p - 54 = 2
14p = 56
p = 4

q = 4p - 18 = 4 × 4 - 18 = 16 - 18 = -2

5p - 2q
= 5 × 4 - 2 × (-2)
= 20 + 4 = 24