Question

$\frac{h+4}{6}= \frac{h}{5}$

Answer 1

Olá!
Regra de três:
5(h+4) = 6h
5h + 20 = 6h
6h - 5h = 20
h=20

Answer 2

(h + 4)/6 = h/5
6 . h = 5 . (h + 4)
6h = 5h + 20
6h - 5h = 20
h = 20