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5x-30-2x+4 = x-6
7x-26 = x-6
6x = 20
x = 3 1/3
2) a²-7a+6 = (a-6)(a-1)
3) gak tau :Dv
5x -30 - 2x + 4 = x - 62
3x - 26 = x - 62
3x - x = 26 - 62
2x = - 36
x = -18
2.
(a - 6)(a - 1) = 0
a = 6 atau a = 1