Question

Multimea solutiilor reale ale inecuatiei 3x+8>-x este intervalul...

Answer 1

$3x + 8 > - x$

$3x + x > - 8$

$4x > - 8$

$x > - \frac{8}{4}$

$x > - 2$

$x \: \epsilon \: ( - 2, + \infty )$

Answer 2

3x+8 > -x
3x + x > -8
4x > -8
x > -8/4  ⇒ x ∈ (-2 , + infinit)