Question

9×х=811-712

Х+6=1000-914

Answer 1

9х=811-712х+6=86

9х+712х=811+6-86

721х=731

Answer 2

Ответ:

9×х=811-712

9х=99

х=11

Х+6=1000-914

х+6=86

х=86-6

х=80