To make b the subject of the equation, we need to get b by itself on one side. First, I would multiply both sides by a-b, giving ya - yb = a. Then, I'd subtract ya from both sides, leaving -by = a - ya, then finally divide by -y, giving \(b = \frac{a}{y} - \frac{ya}{-y}\), which is equal to \(\frac{a}{y} + a\)
