joshnjenje
joshnjenje joshnjenje
  • 07-12-2020
  • Mathematics
contestada

Man how do i do this

Man how do i do this class=

Respuesta :

ummmheyyall ummmheyyall
  • 07-12-2020
the answer is x=3!!!!!!!!!!!!!!
Ver imagen ummmheyyall
Answer Link
kristawickel kristawickel
  • 07-12-2020
7x+18+90+51= 180
7x+159=180
7x=180-159
7x=21
X=21/7
X=3

7(3)+18=
21+18=
39°

Then check by adding 90°+51°+39°=180
Since that adds up to 180° x=3
Answer Link

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