10r-9r+r+2r-3r=15

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Solution for 10r-9r+r+2r-3r=15 equation: 


Simplifying
10r + -9r + r + 2r + -3r = 15

Combine like terms: 10r + -9r = 1r
1r + r + 2r + -3r = 15

Combine like terms: 1r + r = 2r
2r + 2r + -3r = 15

Combine like terms: 2r + 2r = 4r
4r + -3r = 15

Combine like terms: 4r + -3r = 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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