nr+dq=k

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Solution for nr+dq=k equation: 


Simplifying
nr + dq = k

Reorder the terms:
dq + nr = k

Solving
dq + nr = k

Solving for variable 'd'.

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

Add '-1nr' to each side of the equation.
dq + nr + -1nr = k + -1nr

Combine like terms: nr + -1nr = 0
dq + 0 = k + -1nr
dq = k + -1nr

Divide each side by 'q'.
d = kq-1 + -1nq-1r

Simplifying
d = kq-1 + -1nq-1r

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