Question

5 by 2 x minus 4 equals to 2 by 5 x then find the value of 2 x minus 7​

Answer 1

Answer:

5/2x - 4 = 2/5x

-2/5x - 5/2x = -4

-21x/10x^2 = -4

-21x = -40x^2

21x = 40x^2

40x^2-21x=0

x= 0 or X= 21/40

2x-7= -7 or -119/20