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2x + y = 14 x3 6x + 3y = 42
____________ _
-y = -28
y = 28
2x + y = 14
2x + 28 = 14
2x = 14-28
2x = -14
x = -14/2
x = -7
-2x + 3y = -2 (-7) + 3 (28)
= 14 + 84
= 98