Question

14,2-(х-3,4)=10,8 Ребята 5 минут Срочно!!!!! Только правильно!!!

Answer 1

$14.2 - (x - 3.4) = 10.8 \\ 14.2 - x + 3.4 = 10.8 \\ 17.6 - x = 10.8 \\ - x = - 6.8 \\ x = 6.8 \\ 14.2 - (6.8 - 3.4) = 10.8$

Answer 2

$x - 3.4 = 14.2 - 10.8 = 3.4 \\ x = 3.4 + 3.4 = 6.8$

Ответ:6,8