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Hey!!!
Solution,
2x+10+X+5=180 ( sum of co-interior angles)
or, 2x+X+10+5=180
or,3x+15=180
or,3x=180-15
or,3x=165
or, X=165/3
X=55
So the value of X is 55.
Hope it helps...
Good luck on your assignment
STAY SAFE......
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