-(a+4)-19=7 2 целых 1/3-(y-5/12)=1.75 решите уравнения
-(a + 4) - 19 = 7
-a - 4 - 19 = 7
-a - 23 = 7
-a = 7 + 23
-a = 30
a = -30
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-(a + 4) - 19 = 7
-a - 4 - 19 = 7
-a - 23 = 7
-a = 7 + 23
-a = 30
a = -30