Question

решите уравнения 0,8(х-2) - 0,7(x-1) = 2,7​

Answer 1

$0.8(x - 2) - 0.7(x - 1) = 2.7 \\ 0.8x - 1.6 - 0.7x + 0.7 = 2.7 \\ 0.1x = 2.7 + 1.6 - 0.7 \\ 0.1x = 3.6 \\ x = 36$

Ответ: 36.