Question

alguien q me ayude xfis :)
​

Answer 1

$\small\bold{20 + 60 + 60 + x = 180} \\ \\ \small\bold{140 + x = 180} \\ \\\small \bold{x = 180 - 140} \\ \\ \boxed{\bold\red{x = 40}}$

______________________

$\small\bold{50 + 75 + x = 180} \\ \\ \small\bold{125 + x = 180} \\ \\ \small\bold{x = 180 - 125} \\ \\ \boxed{\bold\red{x = 55}}$