Решите уравнения: 28+(45+х)=100 52-(19+х)=17 Школа№10 №556
28 + ( 45 + X ) = 100 28 + 45 + X = 100 X = 100 - 28 - 45 A = 27 ------------------- 52 - ( 19 + X ) = 17 52 - 19 - X = 17 33 - X = 17 X = 33 - 17 X = 16
..