b-[b-(a+b)-{b-(b-a+b)}+2a]
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b - [ b - ( a + b ) - { b - ( b - a + b ) } +2a ]
b - { b - a - b - ( b - b + a - b ) + 2a }
b - { - a - ( - b + a ) + 2a }
b - ( - a + b - a + 2a )
b - ( -2a + b + 2a )
b + 2a - b - 2ab = 0
Hope it will help you !!
b - [ b - ( a + b ) - { b - ( b - a + b ) } +2a ]
b - { b - a - b - ( b - b + a - b ) + 2a }
b - { - a - ( - b + a ) + 2a }
b - ( - a + b - a + 2a )
b - ( -2a + b + 2a )
b + 2a - b - 2ab = 0
Hope it will help you !!
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