rx+s=qx+d

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Solution for rx+s=qx+d equation: 


Simplifying
rx + s = qx + d

Reorder the terms:
rx + s = d + qx

Solving
rx + s = d + qx

Solving for variable 'r'.

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

Add '-1s' to each side of the equation.
rx + s + -1s = d + qx + -1s

Combine like terms: s + -1s = 0
rx + 0 = d + qx + -1s
rx = d + qx + -1s

Divide each side by 'x'.
r = dx-1 + q + -1sx-1

Simplifying
r = dx-1 + q + -1sx-1

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