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

Answer:

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

Step-by-step explanation:

(3b+4r)+(-2b-r)

Open the bracket

=3b+4r-2b-r

Combine the like coefficient

=3b-2b+4r-r

=b+3r

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

Answer 2

Answer:

Ella incorrectly combined the r coefficients. The correctly simplified expression is b Plus 3r.which is answer D.

Step-by-step explanation: