ax-n=r

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Solution for ax-n=r equation: 


Simplifying
ax + -1n = r

Solving
ax + -1n = r

Solving for variable 'a'.

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

Add 'n' to each side of the equation.
ax + -1n + n = n + r

Combine like terms: -1n + n = 0
ax + 0 = n + r
ax = n + r

Divide each side by 'x'.
a = nx-1 + rx-1

Simplifying
a = nx-1 + rx-1

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