Question

5x -4/8 - (x - 2/5)= x+6/4​

Answer 1

Expand:

5x - 4/8 - x + 2/5 = x + 6/4

Transposition:

3x = 6/4 + 4/8 - 2/5

Make like denominators:

LCM(4,8,5) = 40

3x = 60 + 20 - 8 / 40

3x = 78 / 40

x = 78*3 / 40