А) (x + 36.1) * 5.1 = 245.82

x + 36.1 = 245.82 : 5.1

x + 36.1 = 48.2

x = 48.2 - 36.1

x = 12.1

б) (m-0,67)•0,02=0,0152

m - 0.67 = 0.0152 : 0.02

m - 0.67 = 0.76

m = 0.76 + 0.67

m = 1.43