Question

If 2x+5:7x-6 is the duplicate ratio of 5:8 then find the value of x

Answer 1

2x+7/7x-6=5^2/8^2

2x+7/7x-6=25/64

64(2x+7)=25(7x-6)

128x+448=175x-150

175x-128x=448-150

47x=298

x=298/47....i hope this is the answer