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quester [9]
3 years ago
5

-7=21+x help please thankyou

Mathematics
2 answers:
serg [7]3 years ago
4 0
Move the 21 to the other side and change the sign

-7-21=x
x=-28

hope this helps
Readme [11.4K]3 years ago
4 0
Subtract 21 on both sides.

-7-21=21-21+x
-7-21=x
x=-28

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From the question, we are to determine the unit rate

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Learn more on Calculating rate here: brainly.com/question/1090517

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