9k+ar=r

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Solution for 9k+ar=r equation: 


Simplifying
9k + ar = r

Reorder the terms:
ar + 9k = r

Solving
ar + 9k = r

Solving for variable 'a'.

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

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

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

Divide each side by 'r'.
a = -9kr-1 + 1

Simplifying
a = -9kr-1 + 1

Reorder the terms:
a = 1 + -9kr-1

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