Question

[ 3+( a+2): 2] * 4 -8=32

Answer 1

➳ Rezolvare:

[ 3 + ( a + 2 ) : 2 ] × 4 - 8 = 32

[ 3 + ( a + 2 ) : 2 ] × 4 = 32 + 8

[ 3 + ( a + 2 ) : 2 ] × 4 = 40

[ 3 + ( a + 2 ) : 2 ] = 40 : 4

[ 3 + ( a + 2 ) : 2 ] = 10

( a + 2 ) : 2 = 10 - 3

( a + 2 ) : 2 = 7

a + 2 = 7 × 2

a + 2 = 14

a = 14 - 2

a = 12 → rezultatul obținut

Verificare:

[ 3 + ( 12 + 2 ) : 2 ] × 4 - 8 =

= ( 3 + 14 : 2 ) × 4 - 8 =

= ( 3 + 7 ) × 4 - 8 =

= 10 × 4 - 8 =

= 40 - 8 =

= 32 ✓