Answer:
20
Step-by-step explanation:
x/2+15=25
x/2=10
x=20
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Answer:
D
Step-by-step explanation:
Answer:
x = 36
Step-by-step explanation:
the 3 angles form a straight angle and sum to 180°
sum the 3 angles and equate to 180
3x + x + x = 180 , that is
5x = 180 ( divide both sides by 5 )
x = 36