24-02-2021
Mathematics

contestada

help with this geometry problem

help with this geometry problem class=

Respuesta :

24-02-2021

Answer:

Step-by-step explanation:

3x-20=x+40

2x=60

x=30, then

y+x+40=180, knowing x=30

y+30+40=180

y+70=180

y=110

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