Question

23000+12*(2016-1963/x)=45380

Answer 1

решение во вложении----------------------

Answer 2

12*(2016-1963/х)=45380-23000=22380⇒2016-1963/х=22380/12=1865⇒-1963/х=1865-2016=-151⇒х=1963/151=13