How would I solve 7r=-7/2? I know the answer is - 1/2 I just don't understand how to get - 1/2 as my answer.

Question

Danica Blackwell

Mathematics

8 July, 02:57

How would I solve 7r=-7/2? I know the answer is - 1/2 I just don't understand how to get - 1/2 as my answer.

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Answers (1)

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Jovani · Answer 1

7r=-7/2

divide both sides by 7 to get r by itself

(7r) / (7) = (-7/2) / (7)

if you don't quite see it, think of multiplying both sides by 1/7 instead (its the same thing as dividing by 7)

(7r) * (1/7) = (-7/2) * (1/7)

r=-1/2