adeli1313
adeli1313
10-06-2020
Mathematics
contestada
Solve for the value of x
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glazedonut69
glazedonut69
10-06-2020
The sum of a triangle is 180 degrees so the value for x would be 9
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anonlol3
anonlol3
10-06-2020
A sum of the angles of a triangle will always be 180 degrees total.
50 + 50 + 9x - 1 = 180
100 + 9x - 1 = 180
99 + 9x = 180
Subtract 99 from both sides.
9x = 81
Divide each side by 9.
x = 9
Answer: x = 9
Answer Link
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