Question

AYUDA ×/2 - 2/5 =×/5+1/2

Answer 1

5x/10 - 4/10 = 2x/10 + 5/10;
5x-4=2x+5,
5x-2x=4+5,
3x=9
x= 9/3
x= 3

Answer 2

x/2 -2/5 =x/5 +1/2

x/2 - 1/2 = x/5 +2/5
(x-1)/2 = (x+2)/5

5(x-1) = 2(x+2)
5x -5 =2x+4
5x-2x = 4 +5
3x = 9
x=3

Respuesta : "x" vale 3

Espero te sirva !! ^^