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Alinara [238K]
3 years ago
9

Solve for the value of y

Mathematics
2 answers:
dlinn [17]3 years ago
5 0
Y = 8 i hope you do good !
skad [1K]3 years ago
4 0

Answer:

y=8

Step-by-step explanation:

the sum of the three angles is 180

57 + 90 + 5y-7 = 180

5y + 140 = 180

5y = 40

y = 8

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