Answer: p = 4.9
Step-by-step explanation:
2,5 + 3(5-2.1p) = -13,37
2,5 + 3(5-2.1p) - 2,5 = -13,37 - 2,5
3(5-2.1p) = -15,87
3(5-2.1p) / 3= -15,87 /3
5-2.1p = -5.9
5+5.29 = 2.1p
(5+5.29 ) /2.1 = 2.1p /2.1
4.9 = p
