s27956838 s27956838

04-06-2021
Mathematics

contestada

Simplify the expression:
7r–3r+9r

Respuesta :

markchindudzi716 markchindudzi716

04-06-2021

Answer:

13r

Step-by-step explanation:

all like variables so add the coefficient

7+(-3)+9

7-3+9

13

=13r

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