Answer:
[tex]x = 8 \\ (8x + 20) =36[/tex]
Step-by-step explanation:
[tex](10x + 16) + (8x + 20) = 180. \: \: \: \\ i.e \:sum \: of \: angles \: on \: a \: straight \: line. \\ 18x \: + 36 = 180 \\ x = \frac{180 - 36}{18} = \frac{144}{18} = 8.[/tex]
[tex] (8x + 20) =(8 \times 8) + 20 = 16 + 20 \\ (8x + 20) =36.[/tex]
