Question

X-28=X:5
Sa se afle X daca .......dintr-un numar scad 28 obtin acelasi rezultat ca atunci cand il impart la 5

Answer 1

$x - 28 = \frac{1}{5} x \\ 5x - 140 = x \\ 5x - x = 140 \\ 4x = 140 \\ x = 35$

Answer 2

x-28=1/5x
5x-140=x
5x-x=140
4x=140
x=140:4
x=35