HELP ME PLEASE

Question

Jerry erans 600kr+50kr a week.
Phil erans 1200kr+50kr a week. Write an expression of their two incomes and when will they have the equal amount/the same amount of money?

Answer 1

Jerry has 650kr and Phil has 1250kr

 

They are equal when 650kr = 1250kr

 

                              0 = 1250kr - 650kr = 600 kr

 

      So they are equal when k=0 or r=0