Chapter 2 - Solving Equations - 2-5 Literal Equations and Formulas - Practice and Problem-Solving Exercises - Page 112: 25

$\frac{A-c}{Bt}=x$

We are trying to isolate $x$ in the equation $A=Bxt+c$ To do this, we must first subtract $c$ from both sides of the equation: $A-c=Bxt$ Next, we must divide by $B$ on both sides of the equation: $\frac{A-c}{B}=xt$ Finally, we must divide by $t$ on both sides of the equation: $\frac{A-c}{Bt}=x$