Step-by-step explanation:
14 ft
is your answer please mark as brilliant
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Hey there!
Firstly, you need combine your like terms

stays the SAME 

- Combine the negative and the plus and make a negative symbol

Good luck on your assignment and enjoy your day!
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It’s a straight line, and a straight line equals 180° so it would be:
180=6x+2x+12
180=8x+12
subtract 12 from both sides
168=8x
divide both sides by 8
21=x
the answer is 21 which is the second choice