Помогите решить систему неравенств...
[tex] \left \{ {{7+2x>5+x} \atop {3x+2<8+x}} \right. [/tex]
[tex] \left \{ {{7+2x>5+x} \atop {3x+2<8+x}} \right. [/tex]
[tex] \left \{ {{1-0.5x<4-x} \atop {9-2.8x>6-1.3x}} \right. [/tex]
[tex] \left \{ {{0.4x-1<0.5x-1.7} \atop {2.7x-10<0.9x-1}} \right. [/tex]
[tex] \left \{ {{2.8x-17 \geq 0.3x-4.5} \atop {12.3x-16.6 \leq 7.1x+19.8}} \right. [/tex]