sofialion123 sofialion123

19-03-2021
Mathematics

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8-(r+9)-7=9
helppppp pleaseeee

Respuesta :

crimsonorchid crimsonorchid

19-03-2021

8-(r+9)-7 = 9

First, distribute the (-) sign! ^^

8-r-9-7=9

Calculate the numbers! ^^

-8-r = 9

Isolate the variable (r)! ^^

-r = 9+8

Solve! ^^

-r = 17

Move the sign! ^^

r = -17

^ this is your answer :)

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