Question

Помогите пожалуйста решить пример.
${2x - 5 geq 4 - x {7 - 3x textless 12 + x$

Answer 1

$left { {{2x-5geq4-x,} atop {7-3xtextless12+x;}} right. left { {{2x+xgeq4+5,} atop {-3x-xtextless12-7;}} right. left { {{3xgeq9,} atop {-4xtextless5;}} right. left { {{xgeq9:3,} atop {x textgreater 5:(-4);}} right. left { {{xgeq3,} atop {x textgreater -1,25;}} right. \ x geq 3, \ xin[3;+infty)$

Answer 2

Спасибо.