Answer:
x= 8
Step-by-step explanation:
All interior angles of a triangle equal 180 degrees.
Write it out as an equation:
180= 8x-4 + 6x+2 + 9x-2
Simplify:
180= 23x-4
Add four to both sides.
184= 23x
Then divide both sides by 23 and get 8 = x
[tex]we \: know \: that \: \\ sumof \: ngles \: of \: a \: triangle = 180 \\ 8x - 4 + 6x + 2 + 9x - 2 = 180 \\ 8x + 6x + 9x - 4 + 2 - 2 = 180 \\ 23x - 4 = 180 \\ 23x = 184 \\ x = 184 \div 23 \\ x = 8[/tex]
