Question

{4*[(a*3:2-9):9+6]+40}:10=10

Answer 1

{ 4 × [ ( a × 3 : 2 - 9 ) : 9 + 6 ] + 40 } : 10 = 10

4 × [ ( a × 3 : 2 - 9 ) : 9 + 6 ] + 40 = 10 × 10

4 × [ ( a × 3 : 2 - 9 ) : 9 + 6 ] + 40 = 100

4 × [ ( a × 3 : 2 - 9 ) : 9 + 6 ] = 100 - 40

4 × [ ( a × 3 : 2 - 9 ) : 9 + 6 ] = 60

( a × 3 : 2 - 9 ) : 9 + 6 = 60 : 4

( a × 3 : 2 - 9 ) : 9 + 6 = 15

( a × 3 : 2 - 9 ) : 9 = 15 - 6

( a × 3 : 2 - 9 ) : 9 = 9

a × 3 : 2 - 9 = 9 × 9

a × 3 : 2 - 9 = 81

a × 3 : 2 = 81 + 9

a × 3 : 2 = 90

a × 3 = 90 × 2

a × 3 = 180

a = 180 : 3

a = 60

Answer 2

{4*[(a*3:2-9}:9+6]+40}=10*10

4*[(a*3:2-9):9+6]+40=100

4*[(a*3:2-9):9+6]=100-40

4*[(a*3:2-9):9+6]=60

(a*3:2-9):9+6=60:4

(a*3:2-9):9+6=15

(a*3:2-9):9=15-6

(a*3:2-9):9=9

a*3:2-9=9*9

a*3:2-9=81

a*3:2=81+9

a*3:2=90

a*3=90*2

a*3=180

a=180:3

a=60