Question

resolva as inequações . a)2-3x>x-14 b)-5-2x-6< - x + 15 + 7x

Answer 1

a) 2 - 3x > x - 14
-3x - x > - 14 - 2
-4x(-1) > -16(-1)
4x < 16
x < 16/4
x < 4

b) -5 - 2x - 6 < - x + 15 + 7x
-2x - x - 7x < 15 + 5 + 6
-3x - 7x < 20 +6
-10x(-1) < 26(-1)
10x > -26
x > -26/10