## Algebra: A Combined Approach (4th Edition)

$b_s=\frac{g_c-y_t}{r_p}$
Let $r_p=Red Pentagon$ $b_s=Blue Square$ $y_t=Yellow Triangle$ $g_c=Green Circle$ $r_p*b_s+y_t=g_c$ Solve for $b_s$. $r_p*b_s=g_c-y_t$ $b_s=\frac{g_c-y_t}{r_p}$