937. Решите уравнение : 1) 213-(x - 89) = 9585; 3) 4848 : (60-x) = 101; 2) (r + 51) - 309 = 16 686; 4) 9435 : (77 - x) = 555.
даю 100 балов
даю 100 балов
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Пошаговое объяснение:
213 - (х - 89) = 9585
х - 89 = 213 - 9585
х - 89 = -9372
х = -9372 + 89
х = -9283
4848 : (60 - х) = 101
60 - х = 4848 : 101
60 - х = 48
х = 60 - 48
х = 12
(r + 51) - 309 = 16686
r + 51 = 16686 + 309
r + 51 = 16995
r = 16995 - 51
r = 16944
9435 : (77 - x) = 555
77 - х = 9435 : 555
77 - х = 17
х = 77 - 17
х = 60