42х+19х-16=1448 936:(8х-17)=24

1) 42х + 19х = 1448 + 16
61х = 1464
х = 1464 : 61
х = 24

2) 936 = 24(8х - 17)
936 : 24 = 8х - 17
39 = 8х - 17
39 + 17 = 8х
8х = 56
х = 56:8
х = 7

1)
42х + 19 х - 16 = 1.448
61х = 1.448 + 16
61х = 1.464
х = 1.464 : 61
х = 24
проверка:
42 * 24 + 19 * 24 - 16 = 1.448
1.008 + 456 - 16 = 1.448
1.448 = 1.448

2)
936 : (8х - 17) = 24
8х - 17 = 936 : 24
8х - 17 = 39
8х = 39 + 17
8х = 56
х = 56 : 8
х = 7
проверка:
936 : (8 * 7 - 17) = 24
936 : (56 - 17) = 24
936 : 39 = 24
24 = 24