Question

Question 9 of 12What is the value of d that makes lines e and f parallel?e5(2d - 3)º(6d + 11 + 2d)°gh

Answer 1

to be parallel the two indicated angles must be equal

so, we can equal the two measurements

$5(2d-3)=(6d+11+2d)$

and solve d

$\begin{gathered} 10d-15=6d+11+2d \\ 10d-6d-2d=11+15 \\ 2d=26 \\ d=13 \end{gathered}$

the value of d is 13