Question

If (3x + 5y) : (7x - 4y) = 7 : 4 then find the ratio x : y

Answer 1

4*(3x + 5y) =7*(7x - 4y)
12x - 20y = 49x - 28y
8y = 37x
x:y = 8:37



hope it is right

Answer 2

The solution Is given in the image do you want to ask anything else