8+7r=2+5

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Solution for 8+7r=2+5 equation: 



8+7r=2+5

We move all terms to the left:

8+7r-(2+5)=0

We add all the numbers together, and all the variables

7r+8-7=0

We add all the numbers together, and all the variables

7r+1=0

We move all terms containing r to the left, all other terms to the right

7r=-1

r=-1/7

r=-1/7

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