a) 3x/2-1>x/4 //*42 *3x-4=x6x-4=x / +4 - x5x= 4/ :5x= 0,8 x/3 - 3x/5 > -1 / *1515 * x/3 - 15 * 3x/5 = -155x - 9x = -15-4x = -15 / : (-4)x = 3,75
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a) 3x/2-1>x/4 //*4
2 *3x-4=x
6x-4=x / +4 - x
5x= 4/ :5
x= 0,8
x/3 - 3x/5 > -1 / *15
15 * x/3 - 15 * 3x/5 = -15
5x - 9x = -15
-4x = -15 / : (-4)
x = 3,75