Question

Find the value of -3(t + r ) + 8t - 12r . If t = - 4 , r = 2

Answer 1

Step-by-step explanation:

t=-4,r=2

$- 3(t + r) + 8t - 12r \\ - 3( - 4 + 2) + 8 \times (- 4 )- 12 \times 2 \\ - 3 \times ( - 2) + ( - 32) - 24 \\ 6 - 32 - 24 \\ = - 50$