isdatnaeeeee
isdatnaeeeee isdatnaeeeee
  • 25-07-2020
  • Mathematics
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help pls thx guys photo attached

help pls thx guys photo attached class=

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 25-07-2020

Answer:

x = 18

A = 110

Step-by-step explanation:

Angles A and B are supplementary angles so they add to 180 degrees

A + B = 180

5x+20 + 9x -92 = 180

Combine like terms

14x -72 = 180

Add 72 to each side

14x-72+72 = 180+72

14x = 252

Divide each side by 14

14x/14 = 252/14

x =18

A = 5x+20

  = 5*18 +20

   =90 +20

   = 110

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