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8×[2+(4+a)÷3]=48
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Răspuns :

8×[2+(4+a)÷3]=48 |:8

[2+(4+a):3]= 6 |*3

[2+(4+a)]= 18

6+a=18

a= 18-6

a= 12

Baftă!

Hey !

Cerinta :

8×[2+(4+a)÷3]=48

Raspuns :

8 × [ 2 + ( 4 + a ) : 3 ] = 48,

[ 2 + ( 4 + a ) : 3 ] = 48 : 8,

[ 2 + ( 4 + a ) : 3 ] = 6,

[ 2 + ( 4 + a ) ] = 6 x 3,

[ 2 + ( 4 + a ) ] = 18,

4 + a = 18 - 2,

4 + a = 16,

a = 16 - 4

a = 12

A = 12