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  • 09-09-2019
  • Mathematics
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-7r+13=-71 with shown work​

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Аноним Аноним
  • 09-09-2019

-7r+13=-71

move 13 to the other side

sign changes from +13 to -13

-7r+13-13= -71-13

-7r= -84

divide both sides by -7 to get r by itself

-7r/-7= -84/-7

Answer: r= 12

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