2r-r=-15

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Solution for 2r-r=-15 equation: 


Simplifying
2r + -1r = -15

Combine like terms: 2r + -1r = 1r
1r = -15

Solving
1r = -15

Solving for variable 'r'.

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

Divide each side by '1'.
r = -15

Simplifying
r = -15

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