Question

21-{2.[12+6:(4-2.3)]}

Answer 1

21-{2.[12+6:(4-2.3)]} = 

21-{2.[12+6:(4 - 6)]} = 

21-{2.[12 + 6:(-2)]} = 

21-{2.[12 + 6 : - 2]} = 

21-{2.[12 - 3]} = 

21-{2.[9]} = 

21- { 18 } = 

21 - 18 = 3 

assi??