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
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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