Respuesta :

22stolc

Answer:

x = 34

Step-by-step explanation:

Add together all three angles because together they equal 180 degrees

x + 12 + x + 100 = 180         Combine like terms

2x + 112 = 180

     - 112   - 112                   Subtract 112 from both sides

2x = 68                              Divide both sides by 2

x = 34

taygabrielle421
I’d start off by setting x, (x+12), and 100 to 180. They are are on a line and a line = 180 degrees.

So: 100+ x + (x+12) = 180
subtract 100 from both sides

x + x + 12 = 80
simplify by adding the two x’s equaling 2x +12= 80

subtract 12 from both sides giving you: 2x=68

divide by 2 and x = 34, (x+12) = 46

34+46+100= 180 degrees! meaning you now have your line :D hope this helps!

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