Question

х + (х + 5) + (х - 7) = 62

Answer 1

Ответ:

Раскрываем скобки:

= х+х+5+х-7 = 62 = 3х-2 = 62

3х = 64

х = 64:3

$x = 21 \frac{1}{3}$

Answer 2

$x + (x + 5) + (x - 7) = 62 \\ x + x + 5 + x - 7 = 62 \\ 3x - 2 = 62 \\ 3x = 64 \\ x = \frac{64}{3} \\ x = 21 \frac{1}{3}$