[tex]5 \frac{1}{4} \times (12 - t) - 3 \frac{3}{4} \times ( - t - 24) = \frac{21 \times 12}{4} - 5 \frac{1}{4} t + 3 \frac{3}{4} t + \frac{15 \times 24}{4} = 63 - 1.5t + 90 = 153 - 1.5t = 153 - 1.5 \times ( - 0.4) = 153 + 0.6 = 153.6[/tex]