x - 6y = -30 / * 2
-2x - 5y = -25
2x - 12y = -60
-2x - 5y = -25
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+
2x - 2x - 12y - 5y = -60 - 25
-17y = -85 / : (-17)
y = 85/17
y = 5
y = 5
x - 6y = -30
y = 5
x - 6 * 5 = -30
y = 5
x - 30 = -30
y = 5
x = 30 - 30
y = 5
x = 0
answer:
x = 0
y = 5