4r+13=-15

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Solution for 4r+13=-15 equation:



4r+13=-15
We move all terms to the left:
4r+13-(-15)=0
We add all the numbers together, and all the variables
4r+28=0
We move all terms containing r to the left, all other terms to the right
4r=-28
r=-28/4
r=-7

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