I'm almost to embarrassed too even post this question. I'm taking a physics class, and some of the elementary alegraic manipulation has me scratching my head.

The actual formula is Us(W-P) = 0, and I'm supposed to set the equation to solve for P. The solutions manual has the final equation listed as P = UsW / 1+Us, but I'm absolutely snowed on how they got that.

Any help would be appreciated.