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pantera1 [17]
3 years ago
6

Simplify the expression 8r+(4r? – 5r+7) Help!!!

Mathematics
1 answer:
exis [7]3 years ago
6 0

Answer:

7r+7

Step-by-step explanation:

just open up the bracket... nothing will change

8r+4r-5r+7  (since 8r, 4r and 5r are alike we can add them together)

8r+4r=12r

12r-5r=7r

...7r+7

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