resolva as inequacoes a seguir a)3×+9<12 b)5×-10<20 c)-2×+5<17 d)4×+10<-6
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3x + 9 < 12 = 3x < 12 - 9 = 3x < 3 = x < 3/3 = x<1
5x - 10 < 20 = 5x < 20 + 10 = 5x < 30 = x < 30/5 = x<6
-2x + 5 < 17 = -2x < 17 - 5 = -2x < 12 x(-1) = 2x > -12 = x> -12/2 = x>-6
4x + 10 < -6 = 4x < -6 -10 = 4x < -16 = x < -16/4 = x < -4
5x - 10 < 20 = 5x < 20 + 10 = 5x < 30 = x < 30/5 = x<6
-2x + 5 < 17 = -2x < 17 - 5 = -2x < 12 x(-1) = 2x > -12 = x> -12/2 = x>-6
4x + 10 < -6 = 4x < -6 -10 = 4x < -16 = x < -16/4 = x < -4
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