Răspuns:
Explicație pas cu pas:
{4 × [(3 + x ) : 9 + 7] - 30} × 2 - 12 = 1 768
{4 × [(3 + x ) : 9 + 7] - 30} × 2 = 1 768 + 12
{4 × [(3 + x ) : 9 + 7] - 30} × 2 = 1 780
4 × [(3 + x ) : 9 + 7] - 30 = 1 780 : 2
4 × [(3 + x ) : 9 + 7] - 30 = 890
4 × [(3 + x ) : 9 + 7] = 890 + 30
4 × [(3 + x ) : 9 + 7] = 920
(3 + x ) : 9 + 7 = 920 : 4
(3 + x ) : 9 + 7 = 230
(3 + x ) : 9 = 230 - 7
(3 + x ) : 9 = 223
3 + x = 223 × 9
3 + x = 2007
x = 2 007 - 3
x = 2 004
