15r+2r-9r-8r+r=13

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Solution for 15r+2r-9r-8r+r=13 equation: 


Simplifying
15r + 2r + -9r + -8r + r = 13

Combine like terms: 15r + 2r = 17r
17r + -9r + -8r + r = 13

Combine like terms: 17r + -9r = 8r
8r + -8r + r = 13

Combine like terms: 8r + -8r = 0
0 + r = 13
r = 13

Solving
r = 13

Solving for variable 'r'.

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

Simplifying
r = 13

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