Question

{[(6-a)×2-7]×9-5}:2=2

Answer 1

{ [ ( 6 - a ) × 2 - 7 ] × 9 - 5 } : 2 = 2

{ [ ( 6 - a ) × 2 - 7 ] × 9 - 5 } = 2 × 2

[ ( 6 - a ) × 2 - 7 ] × 9 - 5 = 4

[ ( 6 - a ) × 2 - 7 ] × 9 = 4 + 5

[ ( 6 - a ) × 2 - 7 ] × 9 = 9

( 6 - a ) × 2 - 7 = 9 : 9

( 6 - a ) × 2 - 7 = 1

( 6 - a ) × 2 = 1 + 7

( 6 - a ) × 2 = 8

6 - a = 8 : 2

6 - a = 4

a = 6 - 4

a = 2