please help me with this question
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The question is wrong a angle cannot be negative hence there is an error in the question.
the question should be x - 2y = 30
answer for that is:
x - 2y = 30 - (1)
x + y = 180 - (2)
On subtracting 1 with 2
-3y = - 210
3y = 210
y = 70
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