Question

памагити пажалуста ( прошу нужны полные ответы)

Answer 1

$1)\; \; \left \{ {{6x+3<5x+5} \atop {-3x-15\leq -2x-8}} \right.\; \; \left \{ {{6x-5x<5-3} \atop {8-15\leq -2x+3x}} \right.\; \; \left \{ {{x<2} \atop {x\geq -7}} \right.\; \; \Rightarrow \; \; \; x\in [-7\, ;2)\\\\\\2)\; \; \left \{ {{3x-7>4x-1} \atop {x+15>10}} \right.\; \; \left \{ {{1-7>4x-3x} \atop {x>10-15}} \right.\; \; \left \{ {{x<-6} \atop {x>-5}} \right.\; \; \Rightarrow \; \; x\in \varnothing \\\\\\3)\; \; \left \{ {{14-3x\geq 10-2x} \atop {12-3x>10-4x}} \right.\; \; \left \{ {{14-10\geq 3x-2x} \atop {4x-3x>10-12}} \right.\; \; \left \{ {{x\leq 4} \atop {x>-2}} \right.\; \; \Rightarrow \; \; x\in (-2\, ;\; 4\; ]$