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= 4d + 4 > 3d - 36
= 4d - 3d > -36 - 4
= d > 40
= 4d + 4 > 3d - 36
= 4d - 3d > -36 -4
= d > -40
pembuktian: 6d-2(d-2) > 3(d-12) = 6 (1) - 2 ((1)-2) > 3 ((1)-12)
= 6 - 2 (-1) > 3-36
= 6 + 2 > -33
= 8 > -33 ....... (terbukti)
2. -2(5x+4)-x > 3-(6x-5) = -10x -8 -x > 3 - 6x + 8
= -10x -x + 6x > 3 + 8 + 8
= -5x > 19
= x < 19/-5
maaf yang nomor 2 saya tidak bisa buktikan...