Derosaclan
Derosaclan
23-10-2020
Mathematics
contestada
∠A=5x−5,∠B=3x+13=180
Respuesta :
arivers092004
arivers092004
23-10-2020
Answer:
x=9
Step-by-step explanation:
5x - 5(3x +13)=0
5x - 3x - 13 - 5 = 0
2x -18= 0
x=18/2
x=9
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