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24+5*[8-2*(x-3)]=24 va rog repede

Răspuns :

24 + 5 × [ 8 - 2 × ( x - 3 ) ] = 24

5 × [ 8 - 2 × ( x - 3 ) ] = 24 - 24

5 × [ 8 - 2 × ( x - 3 ) ] = 0

8 - 2 × ( x - 3 ) = 0 : 5

8 - 2 × ( x - 3 ) = 0

2 × ( x - 3 ) = 8 - 0

2 × ( x - 3 ) = 8

x - 3 = 8 : 2

x - 3 = 4

x = 4 + 3

x = 7