byxigxzm5u
byxigxzm5u byxigxzm5u
  • 11-12-2020
  • Mathematics
contestada

13. Find the value of x.

13 Find the value of x class=

Respuesta :

avi63
avi63 avi63
  • 12-12-2020

Answer:

6x+12+3x-3=180(supplementary angle)

9x+9=180

9(X+1)=180

X+1=20

X=19

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