Răspuns :
( 7 × X ) + 220 - 41 = 200
( 7 × X ) + 220 = 200 + 41
( 7 × X ) + 220 = 241
7 × X = 241 - 220
7 × X = 21
X = 21 : 7
X = 3
( 7 × X ) + 220 = 200 + 41
( 7 × X ) + 220 = 241
7 × X = 241 - 220
7 × X = 21
X = 21 : 7
X = 3