Question

sendo U= {-1,0,1{,resolva a inequacoa: 15-4(1-3x) < x

Answer 1

15 - 4(1 - 3x) < x
15 - 4 + 12x < x
11 + 12x < x
12x - x < - 11
11x > - 11
x > - 11 / 11
x > - 1
S = {x € IR |x > - 1|}