Question

resolva as inequaçoes:

a, 3x + 4 < 4x - 10

b, x + 1 > 3 - 2x

c, 4 ( x - 7) < 2 (x + 3)

d, x + 4 ( x - 3) < 10 - 2 ( x - 3)

Answer 1

a ) 3x - 4x < -10 -4
-x < - 14 . (-1)
x > 14
b ) x + 1 > 3 - 2x
x + 2x > 3 - 1
3x > 2
x > 3/2
c ) 4x - 28 < 2x + 6
4x - 2x < +6 + 28
2x < 34
x < 34/2
x < 17