-11/2+47q/4=-q/4+1/2(8q-1)
-5¹/₂ + 11³/₄q = -¹/₄q + ¹/₂(8q - 1) -5¹/₂ + 11³/₄q = -¹/₄q + ¹/₂(8q) - ¹/₂(1) -5¹/₂ + 11³/₄q = -¹/₄q + 4q - ¹/₂ -5¹/₂ + 11³/₄q = 3³/₄q - ¹/₂ - 3³/₄q - 3³/₄q -5¹/₂ + 8q = -¹/₂ + 5¹/₂ + 5¹/₂ 8q = 5 8 8 q = ⁵/₈