Question

Resolva as inequações:

a) 5x-4< -7 + 1
b)4x-7<3x+1

Answer 1

$a)5x - 4 < - 7 + 1 \\ 5x < - 7 + 1 + 4 \\ 5x < - 2 \\ x < - \frac{5}{2}$
$b)4x - 7 < 3x + 1 \\ 4x - 3x < 1 + 7 \\ x < 8$

Answer 2

Vamos lá

Calculo:

5X - 4 < - 7 + 1

5X < - 7 + 1 + 4

5X < - 6 + 4

5X < - 2

X < - 5 / 2

B )

4X - 7 < 3X + 1

4X - 3X < 1 +7

X < 8