Mathematics
12am
11

Remove all grouping symbols and combine like terms, a - { a - [ a- (2a - b) + 3a ]}

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(2) Answers
yassautumn

[latex]a -\{ a - [ a- (2a - b) + 3a ]\}=\\ a -\{ a - [ a- 2a + b + 3a ]\}=\\ a -\{ a - [ 2a+b ]\}=\\ a -\{ a - 2a - b \}=\\ a -\{ - a- b \}=\\ a+a+b=\\ 2a+b[/latex]

Hrishikesh

a - { a - [ a- (2a - b) + 3a ]} = a - {a - (a - 2a + b + 3a)} = a - {a - (2a + b)} = a - (a - 2a -b ) = a - (-a - b) = a + a + b = 2a + b

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