Question

решите неравенство пожалуйста очень срочнооо

Answer 1

4)
$7(y+3)-2(y+2) \geq 2(5y+1) \\\\ 7y +21-2y-4 \geq 10y+2 \\\\ -5y \geq -15 \\\\ y \leq 3 \\\\ y \in (-\infty;3]$

5)
$6(3+5y)-(2+7y) \leq 5(4+3y) \\\\ 18+30y-2-7y \leq 20+15y \\\\ 8y \leq 4 \\\\ y \leq 0.5 \\\\ y\in (-\infty;0.5]$

5)
$4(3y-1)-3(y-1)\ \textgreater \ 2(3+y) \\\\ 12y-4-3y+3\ \textgreater \ 6+2y \\\\ 7y\ \textgreater \ 7 \\\\ y\ \textgreater \ 1 \\\\ y \in (1;+\infty)$