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4x -- 5y = - 34 |x3| 12x - 15y = -102
------------------------- -
31 y = 62
y = 2
3x + 4y = -10
3x + 4(2) = -10:.
3x + 8 = -10
3x = -10 - 8
3x = -18
x = - 6
8x + 3y
=8(-6) + 3(2)
=-48 + 6
=-42:.
===> B,