Answer:
18
Step-by-step explanation:
Sum of angles in a straight line is 180,
2x + 5x + 3x = 180
10x = 180
x = 180 / 10
x = 18
2x+5x+3x=180°
10x=180°
x=180/10
x=18° ans..
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4,3
1 plus 3 equals 4.
-3 plus 6 equals 3.