Question

решите уравнение (47+25)-х=42

Answer 1

(47+25)-X=42
72-X=42
X=72-42
X=30

Answer 2

( 47 + 25)- ×=42
72 -×= 42
×=72 - 42
×=30
( 47 +25) -×=42
72=72