maciaz209 maciaz209
  • 24-09-2020
  • Mathematics
contestada

I need help on this

I need help on this class=

Respuesta :

fionaferlich1
fionaferlich1 fionaferlich1
  • 24-09-2020

Answer:

x=28

Step-by-step explanation:

180-42=138 since a triangle adds up to 180

2x+10+3x-12=138 then combine like terms

5x-2=138 add 2 to both sides

5x=140 divide each side by 5

x=28

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