Qr-t=9

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Solution for Qr-t=9 equation: 


Simplifying
Qr + -1t = 9

Solving
rQ + -1t = 9

Solving for variable 'r'.

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

Add 't' to each side of the equation.
rQ + -1t + t = 9 + t

Combine like terms: -1t + t = 0
rQ + 0 = 9 + t
rQ = 9 + t

Divide each side by 'Q'.
r = 9Q-1 + tQ-1

Simplifying
r = 9Q-1 + tQ-1

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