6) 0,8(x - 2) + 2,6 = 0,5(7 + x)

Question

Вопрос:

Ответ:

Accepted Answer

0.8x - 1.6 + 2.6 = 3.5 + 0.5x

0.8x + 1 = 3.5 + 0.5x

0.8x - 0.5x = 3.5 - 1

0.3x = 2.5

x = 2.5 / 0.3 = 25/3