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I really don't understand 18. Please help!

I really don't understand 18. Please help!-example-1
User Soulseekah
by
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1 Answer

3 votes
The expression is the sum of all the expressions for each angle
(3x-170)+ (200-2x)+ (x-35)

Combine all like terms
3x-2x+x= 2x
-170+200-35= -5

Final answer: 2x-5
User Yuming Cao
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6.8k points