Answer:
x=12°
Explanation:
When you add the following angles, you get 180 degrees.
Because of this, we can set up and equation.
Combine like terms
Then add 12 to both sides
Divide
Add label
12
since these angles are supplementary, they equal 180. So set 10x-20+6x+8=0 and solve. add 12, divide by 16.
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