1
Question
Simplify:
a−[a−¯¯¯¯¯¯¯¯¯¯¯¯b+a−{a−(a−¯¯¯¯¯¯¯¯¯¯¯¯b−a)}]
Simplify:
a−[a−¯¯¯¯¯¯¯¯¯¯¯¯b+a−{a−(a−¯¯¯¯¯¯¯¯¯¯¯¯b−a)}]
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Solution
a−[a−¯¯¯¯¯¯¯¯¯¯¯¯b+a−{a−(a−¯¯¯¯¯¯¯¯¯¯¯¯b−a)}]=a−[a−b−a−{a−(a−b+a)}]=a−[−b−{a−a+b−a}]=a−[−b−b+a]=a+b+b−a=2b
a−[a−¯¯¯¯¯¯¯¯¯¯¯¯b+a−{a−(a−¯¯¯¯¯¯¯¯¯¯¯¯b−a)}]=a−[a−b−a−{a−(a−b+a)}]=a−[−b−{a−a+b−a}]=a−[−b−b+a]=a+b+b−a=2b
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