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0 votes
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in Algebraic Expressions by (20 points)
edited ago by

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

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2 Answers

0 votes
by (50 points)
-a-[a+{a+b-2a-a+2b}-b]

= -a-[a+a-3a+3b-b]

=-a-[-a+2b]

=-a+a-2b

=-2b
0 votes
by (20 points)
-a-[a+{a+b-2a-(a-2b)}-b]

=-a-[a+{a+b-2a-a+2b}-b]

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

=-a-[a-2a+3b-b]

=-a-[-a+2b]

=-a+a-2b

=-2b

Hope this helps you

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