Question

(6,4+х):2=8,5 знайти х

Answer 1

Ответ:

$(6.4 + x) \div 2 = 8.5$

$(6.4 + x) =8.5 \times 2 \\ (6.4 + x) = 17$

$x = 17 - 6.4$

$x = 10.6$