Answer:
× = 3
Explanation:
9-2×=4× - 9
18 - 2× = 4×
18 = 6×
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Correct me if I'm Wrong
28°
4x+3+2x+9= 180(sum of angles on a straight line equal 180°)
6x+12=180
6x=180-12
6x=168
divide bothsides by 6
6x/6=168/6
x= 28°
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