Question

решите, пожалуйста
Sqrt(29-4x)=3

Answer 1

Sqrt(29-4x)=3;

(29-4x)=9;

4x = 20;

x = 5;

Answer 2

$\sqrt{29-4x} =3\\29-4x=9\\-4x=9-29\\-4x=-20\\x=5$