ax-r=yn

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Solution for ax-r=yn equation: 


Simplifying
ax + -1r = yn

Solving
ax + -1r = ny

Solving for variable 'a'.

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

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

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

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

Simplifying
a = nx-1y + rx-1

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