Answer:
[tex]\huge\boxed{Q=\dfrac{T-R}{R}=\dfrac{T}{R}-1}[/tex]
Step-by-step explanation:
[tex]R = T - RQ\qquad|\text{add}\ RQ\ \text{to both sides}\\\\R+RQ=T-RQ+RQ\\\\R+RQ=T\qquad|\text{subtract}\ R\ \text{from both sides}\\\\R-R+RQ=T-R\\\\RQ=T-R\qquad|\text{divide both sides by} \ R\neq0\\\\\dfrac{RQ}{R}=\dfrac{T-R}{R}\\\\Q=\dfrac{T-R}{R}\\\\Q=\dfrac{T}{R}-\dfrac{R}{R}\\\\Q=\dfrac{T}{R}-1[/tex]
