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Vinil7 [7]
3 years ago
7

Please help |3r -6| =21

Mathematics
2 answers:
julsineya [31]3 years ago
8 0

3r-6=-21

3r-6+6=-21+6 (Add 6 to both sides...)

3r=-15

r=-5


3r-6=21

3r-6+6=21+6 (Add 6 to both sides...)

3r=27

r=9



r=-5 or r=9

Vladimir79 [104]3 years ago
5 0

R=9 this is the answer to the question

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