7r+15=5r+23

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Solution for 7r+15=5r+23 equation: 



7r+15=5r+23

We move all terms to the left:

7r+15-(5r+23)=0

We get rid of parentheses

7r-5r-23+15=0

We add all the numbers together, and all the variables

2r-8=0

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

2r=8

r=8/2

r=4

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