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lara31 [8.8K]
3 years ago
12

7r - 8rhow to combine like terms ​

Mathematics
1 answer:
Sedaia [141]3 years ago
6 0
-r

Step by step:
7r+(-8)
7r+(-8r)
-r
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2 years ago
During a period of 112 minutes, a music station played 40 minutes of commercials. What
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