2Х + 3Y = - 1
8X - 6Y = 14
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X =( - 1 - 3Y ) / 2
X = (14 + 6Y ) / 8
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4 * ( - 1 - 3Y) = 14 + 6Y
- 4 - 12Y = 14 + 6Y
12Y + 6Y = - 4 - 14
18Y = - 18
Y = - 1
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X = ( - 1 - 3Y) : 2
X = ( - 1 + 3 ) : 2 = 2 : 2 = 1
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ОТВЕТ: ( 1 ; - 1 )