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Gennadij [26K]
4 years ago
9

The lines s and t intersect at point R. What is the value of y? y =

Mathematics
2 answers:
Marianna [84]4 years ago
6 0
The\ angle\ (4y-8)^o\ and\ (79+y)^o\ are\ vertical\ angles\\\\therefore:\\\\(4y-8)^o=(79+y)^o\\4y-8=79+y\ \ \ \ |add\ 8\ to\ both\ sides\\4y=87+y\ \ \ \ |subtract\ "y"\ from\ both\ sides\\3y=87\ \ \ \ |divide\ both\ sides\ by\ 3\\\boxed{y=29^o}
nataly862011 [7]4 years ago
3 0
4y-8=79+y\\
3y=87\\
y=29
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