Question

5 x ( 4 + 3 x7 ) - 2 x { 5 + 2 x { 10 - 3 x ( 14 - 3 x 4 ) } }

Answer 1

5*(4+21)-2*{5+2*{10-3*(14-3*4)}}=

5*25-2*{5+2*{10-3*(14-12)}}

=5*25-2*{5+2*{10-3*2}}

=5*25-2*{5+2*{10-6}}

=5*25-2*{5+2*4}

=5*25-2*{5+8}

=5*25-2*13

=125-26=99