Explicație pas cu pas:
sistem:
[tex]\left \{ {{5.8(1 - x) - 1.8(6 - x) < 5} \atop {8 - 4(2 - 5x) > - (5x + 6)}} \right. \\ [/tex]
[tex]\left \{ {{5.8 - 5.8x - 10.8 + 1.8x) < 5} \atop {8 - 8 + 20x > - 5x - 6}} \right. \\ [/tex]
[tex]\left \{ {{ - 5 - 4x < 5} \atop {20x > - 5x - 6}} \right. \\ [/tex]
[tex]\left \{ {{ - 5 - 5< 4x} \atop {20x + 5x > - 6}} \right. \\ [/tex]
[tex]\left \{ {{ -10 < 4x} \atop {25x > - 6}} \right. \\ [/tex]
[tex]\left \{ { { - \frac{10}{4} < x} \atop {x > - \frac{6}{25} }} \right. = >\left \{ {{x > - \frac{5}{2} } \atop {x > - \frac{6}{25} }} \right. \\ = > - \frac{6}{25} < x < + \infty [/tex]
