Respuesta :

Answer:

t = (A/sx) - r

Step-by-step explanation:

Solve for t like this:

[tex]A = s(t+r)x\\A = sx(t+r)\\\\\frac{A}{sx} = t+r\\\frac{A}{sx} - r = t\\t= \frac{A}{sx} - r[/tex]

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