Răspuns :
Răspuns: x = 32
Explicație pas cu pas:
( 48 - x ) : 2 - 9 : 3 + 5 = 10
( 48 - x ) : 2 - 3 + 5 = 10
( 48 - x ) : 2 = 10 - 5 + 3 -> aplic metoda mersului invers
( 48 - x ) : 2 = 5 + 3
(48 - x ) : 2 = 8
48 - x = 8 × 2
48 - x = 16
x = 48 - 16
x = 32
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Verific:
( 48 - 32 ) : 2 - 3 + 5 = 16 : 2 - 3 + 5 = 8 - 3 + 5 = 5 + 5 = 10
( 48 - X ) : 2 - 9 : 3 + 5 = 10
( 48 - X ) : 2 - 3 + 5 = 10
( 48 - X ) : 2 - 3 = 10 - 5
( 48 - X ) : 2 - 3 = 5
( 48 - X ) : 2 = 5 + 3
( 48 - X ) : 2 = 8
48 - X = 8 × 2
48 - X = 16
X = 48 - 16
X = 32