131-132 пожалуйста) буду очень благодарна♥

Question 1

Question 2

131.1) $\left \{ {{x-3 \leq 3x-1} \atop {x+1 \leq 4}} \right. \left \{ {{-2 \leq 2x} \atop {x \leq 3}} \right. \left \{ {{x \geq -1} \atop {x \leq 3}} \right.$
ответ: -1≤x≤3 или x∈ [-1;3]
131.2) $\left \{ {{3x+1\ \textgreater \ x+5} \atop {5x-4\ \textgreater \ 6}} \right. \left \{ {{2x\ \textgreater \ 4} \atop {5x\ \textgreater \ 10}} \right. \left \{ {{x\ \textgreater \ 2} \atop {x\ \textgreater \ 2}} \right.$
ответ: x>2 или x∈ (2;+∞]
131.3) $\left \{ {{x+1 \leq 7} \atop {4x\ \textgreater \ 3x-2}} \right. \left \{ {{x\leq 6} \atop {x\ \textgreater \ -2}} \right.$
ответ: -2
132.1) $\left \{ {{17x-2\ \textgreater \ x-4} \atop {3x-9\ \textless \ 1-x}} \right. \left \{ {{16x\ \textgreater \ -2} \atop {4x\ \textless \ 10}} \righ \left \{ {{x\ \textgreater \ -1/8} \atop {x\ \textless \ 5/2}} \righ \righ \left \{ {{x\ \textgreater \ - \frac{1}{8} } \atop {x\ \textless \ 2\frac{1}{2}}} \righ$
ответ: -1/8
132.2) $\left \{ {{25-6x \leq 4+x} \atop {3x+7,7\ \textgreater \ 1+4x}} \right. \left \{ {{21 \leq 7x} \atop {6,7\ \textgreater \ x}} \right. \left \{ {{x \geq 3} \atop {x\ \textless \ 6,7}} \right.$
ответ: 3≤x<6,7 или x∈ [3;6,7)<br>
132.3) $\left \{ {{2x-5 \geq 4-x} \atop {7-3x\ \textless \ 12+x}} \right. \left \{ {{3x \geq 9} \atop {-5\ \textless \ 4x}} \right. \left \{ {{x \geq 3} \atop {x\ \textgreater \ -5/4}} \right. \left \{ {{x \geq 3} \atop {x\ \textgreater \ -1,25}} \right.$
ответ: x≥3 или x∈ [3;+∞)

Question 3

спасибо♥