Question

(2x + 30)
(4x – 90°
What value for x will show that lines / and m ar parallel?

Answer 1

Answer:

d. 60

Step-by-step explanation:

$(2x + 30) \degree = (4x - 90) \degree \\ (exterior \: alternate \: \angle s) \\ \\ 2x + 30 = 4x - 90 \\ \\ 30 + 90 = 4x - 2x \\ \\ 120 = 2x \\ \\ x = \frac{120}{2} \\ \\ x = 60$