Verified answer

(5x - 1)/4 - (3x - 13)/10 > (5x + 1)/3

mmc = 120

30*(5x - 1) - 12*(3x - 13) > 40*(5x + 1)

150x - 30 - 36x + 156 > 200x + 40

114x + 126 > 200x + 40

86x < 86

x < 1

pronto

m.m.c (3,4,10) => 60

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(5x - 1)*15 - (3x - 13)*6 > (5x + 1)*20

(75x - 15) - (18x - 78) > 100x + 20

75x - 15 - 18x + 78 > 100x + 20

57x - 100x > 20 - 63

-43x > -43 *(-1)

43x < 43

x < 43/43

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x < 1

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MMC 4,10,3=60

15(5x-1)-6(3x-13)>20(5x+1)

75x-15-18x+98>100x+20

57x+83>100x+20

57x-100x>20-83

-43x>-43

43x<43

x<1