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3x-8<10x-15
3x-10x<-15+8
-7x<-7
7x>7
x>1
C.S = <1,+∞>
3x - 8 < 5(2x - 3)
3x - 8 < 10x - 15
15 - 8 < 10x - 3x
7 < 7x
7/7 < x
1 < x
x > 1
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1
Solución.
x∈ (1, infinito)