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3 years ago

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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