R=3b
R=3*(-1)
R=-3
M=2a
M=2*30
M=60
P=60-3=57
ответ:57
R = 3 × (-1) = -3
M = 2 × 30 = 60
P = -3 + 60 = 57
R=3b
R=3*(-1)
R=-3
M=2a
M=2*30
M=60
P=60-3=57
ответ:57
R = 3 × (-1) = -3
M = 2 × 30 = 60
P = -3 + 60 = 57