Question

What is the value of x that makes l1||12? A. 11.3 B. 14 C. 22 D. 10

Answer 1

Answer:

$(8x - 14) + (2x + 54) = 180 \\ 8x + 2x - 14 + 54 = 180 \\ 10x - 14 + 54 = 180 \\ 10x + 40 = 180 \\ 10x = 180 - 40 \\ 10x = 140 \\ x = \frac{140}{10} \\ x = 14$