Question

Does anyone know these 2?

Answer 1

Answer:

1. x=21
2. <1=120 these are the answers

Answer 2

Since the lines are parallel 5x + 15 is the same as angle 1 and 5x + 15 + 3x - 3 equal 180°

$5x + 15 + 3x - 3 = 180$

combine like terms like x's and constants like -3 and 15

$8x + 12 = 180$

subtract 12 from 180 to get 168

$8x = 168$

divide by 8

$x = 21$