8r-3r+5r-7r=15

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Solution for 8r-3r+5r-7r=15 equation: 


Simplifying
8r + -3r + 5r + -7r = 15

Combine like terms: 8r + -3r = 5r
5r + 5r + -7r = 15

Combine like terms: 5r + 5r = 10r
10r + -7r = 15

Combine like terms: 10r + -7r = 3r
3r = 15

Solving
3r = 15

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Divide each side by '3'.
r = 5

Simplifying
r = 5

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