Пошаговое объяснение:
24x + 8 = 15x - 100
24x - 15x = -100 - 8
9x = -108
x = -108 : 9
x = -12
76 - 45x = 94x - 341
94x + 45x = 76 + 341
139x = 417
x = 417 : 139
x = 3
62x - 256 = 114 - 38x
62x + 38x = 114 + 256
100x = 370
x = 370 : 100
x = 3,7
351 - 92x = 51 - 72x
92x - 72x = 351 - 51
20x = 300
x = 300 : 20
x = 15
