a P =5 x a + 5 x 9
P = 5a + 45
A = 3 x 10 + 3 x b
A = 30 + 3b
T = 7 x 11 + 7 x c
T = 77 + 7c
E = 8 x d + 8 x 8a + 8 x b
E = 8d + 64a + 8b
L = 2 x a - 2 x 4
= 2a - 8
U = 5 x 6 - 5 x b
30 - 5b
N = 7 x 9,3 - 7 x c
65,1 - 7c
S = 10 x d - 10 x 2g + 10 x 3c
10d - 20g + 30c
b) A = 3a + 15
B = 14 + 6b
C= 32 +4b + 4c
D= 5a - 20 + 10y