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skad [1K]
4 years ago
11

PLEASE SOLVE FOR QUESTION 13!!!!!

Mathematics
2 answers:
Reptile [31]4 years ago
8 0
X + x + x + 20 + 10 = 180
(combine like terms)
3x + 30 = 180
3x=180-30
3x=150
x=150/3
x=50
ale4655 [162]4 years ago
5 0

Answer:

x°=50°

Step-by-step explanation:

  • x°+(x+10)°+(x+20)°=180°
  • 3x+30=180°
  • 3x=180_30
  • 3x=150
  • finally divide both side by 3
  • x= 50.

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