Question

{7+7×[7+3×(5+225:15-15)]}-161=

Answer 1

{7+7×[7+3×(5+225:15-15)]}-161=
={7+7×[7+3×(5+15-15)]}-161=
={7+7×[7+3×(20-15)]}-161=
=[7+7×(7+3×5)]-161=
=[7+7×(7+15)]-161=
=(7+7×22)-161=
=(7+154)-161=
=161-161=
=0

FOLLOW PLS

Answer 2

{ 7 + 7 × [ 7 + 3 × ( 5 + 225 : 15 - 15 ) ] } - 161 = 0

= { 7 + 7 × [ 7 + 3 × ( 5 + 15 - 15 ) ] } - 161 =

= [ 7 + 7 × ( 7 + 3 × 5 ) ] - 161 =

= [ 7 + 7 × ( 7 + 15 ) ] - 161 =

= ( 7 + 7 × 22 ) - 161 =

= ( 7 + 154 ) - 161 =

= 161 - 161 =

= 0