5. The angles of a quadrilateral are x + 8, x - 2, 3(2x + 1), and 4x + 5. Find the value of x and the measure of each angle, BRO
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Answer:
x is 13
Step-by-step explanation:
x+8+x-2+3(2x+1)+4x+5 = 180°
=> 6x+11+6x+3 = 180°
=> 12x+14 = 180°
=> 12x = 180-14
=> 12x = 166
=> x= 166/12
= 13
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