Răspuns:
Salut !
a x 2 = 60 => a = 30
3 x b = 600 => b = 200
a + 305 = 1000 => a = 1000-305 = 695
164 + b = 900 => b = 900 - 164 = 736
c - 104 = 397 => c = 104 + 397 = 501
400 - d = 45 => d = 400 - 45 = 355
800 : c = 2 => c = 800: 2 = 400
d : 7 = 70 => d = 70 x 7 = 490
Sper ca te-am ajutat
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