Question

1. Решите уравнении:
а) 43х + 19х = 12710
б) 7m + m - 12 = 28
в) 25х + 9х = 1394
г) m + 6m - 5 = 72
Срочно!

Answer 1

1)

43х+19х=12710

62х=12710

х=12710:62

х=205

Answer 2

Ответ:

$a)62x = 12710 \\ x = 12710 \div 62 \\ x = 205$

Б)

$8m - 12 = 28 \\ 8m = 28 + 12 \\ 8m = 40 \\ m = 40 \div 8 \\ m = 5$

В)

$25x + 9x = 1394 \\ 34x = 1394 \\ x = 1394 \div 34 \\ x = 41$

Г)

$7m - 5 = 72 \\ 7m = 72 + 5 \\ 7m = 77 \\ m = 77 \div 7 \\ m = 11$