Question

Murimi and naliaka both had each 840 tree seedlings.murimi planted equal nimber of seedlings per row in x rows while naliaka planted equal number of seedlings in (x+1)rows.the number of tree seedlings planted by murimi in rach row were 4 more than those planted by naliaka in each row.calculate the number of seedlings murimi planted in each row

Answer 1

You want two factors of 840 which differ by 4, and the other factors differ by 1.
840 = 14*60 = 15*56

Answer 2

I want the work out