9=10r-16r+15r

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Solution for 9=10r-16r+15r equation:


Simplifying
9 = 10r + -16r + 15r

Combine like terms: 10r + -16r = -6r
9 = -6r + 15r

Combine like terms: -6r + 15r = 9r
9 = 9r

Solving
9 = 9r

Solving for variable 'r'.

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

Add '-9r' to each side of the equation.
9 + -9r = 9r + -9r

Combine like terms: 9r + -9r = 0
9 + -9r = 0

Add '-9' to each side of the equation.
9 + -9 + -9r = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -9r = 0 + -9
-9r = 0 + -9

Combine like terms: 0 + -9 = -9
-9r = -9

Divide each side by '-9'.
r = 1

Simplifying
r = 1

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