a-{b-(a+b)-[a-(b-a-b(]+2a}
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it's very easy dear friend
solve the first small bracket
a-{b-a-b-[a-b+a+b]+2a}
solve now middle bracket
a-{-2b-a+2a[a-b+a+b]
a+2b-a[a-b+a+b]
2b+a-a[0]
=2b+a ans...
hope it's helpful for you
plz marked as brain list if you can
solve the first small bracket
a-{b-a-b-[a-b+a+b]+2a}
solve now middle bracket
a-{-2b-a+2a[a-b+a+b]
a+2b-a[a-b+a+b]
2b+a-a[0]
=2b+a ans...
hope it's helpful for you
plz marked as brain list if you can
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