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6x-7 = 2x²-5x+5
-2x²+11x-12 = 0 ×-1
2x²-11x+12 = 0
(2x- 3) V (x- 4)
x= V x=4
1) y = 6()-7 = 2
2). y= 6(4)-7 = 17
jawabannya : 17 atau 2