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{(9-7) x 6 x ( 5 x 3 - 13) - [ 3 + (25 -6 x 4) + 3 x 2]} x2 - 18

Răspuns :

{(9-7) x 6 x(15-13) - [3+(25-24)+3 x 2]} x 2 - 18=10
{(9-7) x 6 x 2 - (3+1+6)}x 2 - 18=10
{2 x 6 x 2 - 10} x 2 - 18=10
{24-10} x 2 -18=10
14 x 2 - 18=10
28- 18=10