Question

resolva essa equação
2/5 y- 3/4 =3/20 y​

Answer 1

2/5 y - 3/4 = 3/20 y

20(2/5 y - 3/4) = 20 . 3/20 y

20 . 2/5 y - 20 . 3/4 = 3y

4 . 2y - 5 . 3 = 3y

8y - 15 = 3y

8y - 3y = 15

5y = 15

y = 15/5

${\boxed{\sf \ \red{y=3}}}$

RESPOSTA FINAL ⇒ ${\boxed{\sf \ \red{y=3}}}$