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4 votes
Ella simplifies (3b+4r)+(-2b-r) and says the result is b+5r. what error did ella make

User Raspi
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2 Answers

3 votes
Ella incorrectly combined the r coefficients. The correctly simplified expression is b + 3r
User Alwyn
by
7.5k points
5 votes
she added 4r and ,+r instead of 4r and -r
User Ben Drury
by
8.2k points
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