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15 votes
15 votes
I NEED HELPPPPP ON THISSS ASAPPPPPPPP!!!!!!!!


- THIS IS A 50 POINT QUESTION

I NEED HELPPPPP ON THISSS ASAPPPPPPPP!!!!!!!! - THIS IS A 50 POINT QUESTION-example-1
User Ivan Le Hjelmeland
by
2.5k points

2 Answers

23 votes
23 votes

Answer:

X is 11 and after substitution y is 40

User Bliako
by
3.0k points
12 votes
12 votes

Answer:

40

Explanation:

Sum of all angles of triangle = 180°

∠W + ∠X + ∠Y = 180

10x + 17 + 2x - 9 + 3x + 7 = 180

10x + 2x +3x + 17 - 9 + 7 = 180

Combine like terms

15x + 15 = 180

15x = 180- 15

15x = 165

x = 165/15

x = 11

∠Y = 3x +7 = 3*11 + 7 = 33 + 7 = 40

User Aliko
by
3.3k points