C +4 ×25 = 985 помогите

Question

C +4 ×25 = 985 помогите

Answer 1

985-с=4*25
985-c=100
c=985-100
c=885
Ответ:885.

Answer 2

С+4*25=985
с+100=985
с=985-100
с=885
885+4*25=985