Question

resolver as inequações
a) 4x - 3 < 0
b) 2 (x -2) + 3 < 5 (x + 1)

Answer 1

Olá,

a)

4x-3 < 0
4x < 3
4x/4 < 3/4
x < 3/4

b)

2(x-2) + 3 < 5(x+1)
2x-4+3 < 5x+5
2x-1 < 5x+5
-1-5 < 5x-2x
-6 < 3x
-6/3 < 3x/3
-2 < x
x > -2