Question

Help pleaseeeeeeeeeeeere

Answer 1

`x = 10x + 140`

Explanation:

`1. \: 20x + 19 + 121 - 10x \\ 2. \: (20x - 10x) + (19 + 121) \\ \: 3. \: 10x + 140`

Answer 2

Answer: x = 4

Explanation:

Same-side exterior angles theorem:

Two angles on the same side of the transversal and outside of two parallel lines are supplementary

(20x+19)+(121-10x) = 180 << sum the angles to get 180°

20x+19+121-10x = 180

10x+140 = 180

10x = 40

x = 4