SAT Question bf704c34: Nonlinear Equations In One Variable And Systems Of Equations In Two Variables answer and explanation with Desmos solution

Choice B is incorrect. This equation is equivalent to $c+7=25p+k$, not $c-7=25p+k$.

Choice C is incorrect. This equation is equivalent to $\frac{c}{7}=25p+k$, not $c-7=25p+k$.

Choice D is incorrect. This equation is equivalent to $7c=25p+k$, not $c-7=25p+k$.