mari55592 mari55592
  • 30-10-2020
  • Mathematics
contestada

help me answer please​

help me answer please class=

Respuesta :

cduesburyl16
cduesburyl16 cduesburyl16
  • 30-10-2020

Answer:

x=21

Step-by-step explanation:

supplementary angles add up to 180°

7x-3+2x-6=180

collect like terms

9x-9=180

add 9 to both sides

9x=189

divide both sides by 9

x=21

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