4a-2[2b-(b-2a)]+3b

what are the steps in solving this equation?
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1 Answer

4a +3b -2[2b-(b-2a)]

=4a+3b -2(2b-b+2a)

=4a+3b -2(2a+b)

=4a+3b -4a-2b

=b
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