Х * 5+138000=138455. 7*х+2134=4381

Question

Х * 5+138000=138455. 7*х+2134=4381

Answer 1

х * 5+138000=138455

5х=138455-138000

5х=455

х=455:5

х=91

7*х+2134=4381

7х=4381-2134

7х=2247

х=2247:7

х=321