Question

Ella simplifies (3 b + 4 r) + (negative 2 b minus r) and says the result is b Plus 5r. What error did Ella make? Ella incorrectly combined the b coefficients. The correctly simplified expression is 5 b + 5 r. Ella incorrectly combined the b coefficients. The correctly simplified expression is Negative b + 5 r. Ella incorrectly combined the r coefficients. The correctly simplified expression is b – 5r. Ella incorrectly combined the r coefficients. The correctly simplified expression is b Plus 3r.

Answer 1

Given : Ella simplifies (3 b + 4 r) + (negative 2 b minus r) and says the result is b Plus 5r

(3b + 4r)  + (-2b - r)  = b + 5r

To Find : What error did Ella make

Solution:

(3b + 4r)  + (-2b - r)  

=  3b + 4r -2b - r

=  3b - 2b + 4r - r

= b + 3r

Ella incorrectly combined the r coefficients. The correctly simplified expression is b +  3r.

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Answer 2

Answer:

3r i got it right on ed

Step-by-step explanation:

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