Răspuns:
{[(x: 11+3):7–2] x 9+6} x 17–87 = 2 004
{[(x: 11+3):7–2] x 9+6} x 17=2004+87
{[(x: 11+3):7–2] x 9+6} x 17=2091
{[(x: 11+3):7–2] x 9+6} =2091:17
[(x: 11+3):7–2] x 9+6=123
[(x: 11+3):7–2] x 9=123-6
[(x: 11+3):7–2] x 9=117
[(x: 11+3):7–2]=117:9
(x: 11+3):7–2=13
(x: 11+3):7=13+2
(x: 11+3):7=15
(x: 11+3)=15x7
x:11+3=105
x:11=105-3
x:11=102
x=102x11
x=1 122