Question

решите уравнение: 78 + 39x = 306 - 18x

Answer 1

78 + 39x = 306 - 18x
39x + 18х = 306 - 78
57х = 228
х = 228/57
х = 4

Ответ: 4

Answer 2

78+39х=306-18х
39х+18х=306-78
57х=228
х=228:57
х=4