Question

7 - 7 x{ 3 + 2 x[ 2011-5 x (376 +25)] - 135 /9 }

Answer 1

7-7*{3+2*[2011-5*(376+25)]-135/9}

=7-7*[3+2*(2011-5*401)-15]

=7-7*[3+2*(2011-2005)-15]

=7-7*(3+2*6-15)

=7-7*(3+12-15)

=7-7*(15-15)

=7-7*0

=7-0

=7