saabrrinnaaa
saabrrinnaaa saabrrinnaaa
  • 12-11-2018
  • Mathematics
contestada

please help me with this question

image attached

please help me with this question image attached class=

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juneiparis666
juneiparis666 juneiparis666
  • 12-11-2018

3x+5x-1+4x+2x+6x+1=540 (Sum of all int. angles of a pentagon is 540)

20x-0=540  (Add like terms)

20x=540 (addition property of equality)

x=27


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