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x-4 < (4 + 4/5x) 2
x-4 < 8 +8/5x
x-8/5x < 8+4
-3/5x < 12
x > 12 (-5/3)
x > -20
2. 5x - 4 < 6x + 5
5x-6x < 5 +4
-x < 9
x > -9