Question

{4•[(3+x):9+7]-30}•2-12=1768

Answer 1

{4 * [(3+x):9+7]-30}*2=1768+12
{4 * [(3+x):9+7]-30}*2 = 1780
4 * [(3+x):9+7]-30 = 1780:2
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=2007-3
x=2004