5y+9>3-7y;
5y+7y>3-9;
12y>-6;
y>-0.5;
y є
3-4y>4-12y;
-4y+12y>4-3;
8y>1;
y>0.125;
3-7y>5y-3;
-7y-5y>-3-3;
-12y>-6;
y<0.5;
5y+9>3-7y;
5y+7y>3-9;
12y>-6;
y>-0.5;
y є
3-4y>4-12y;
-4y+12y>4-3;
8y>1;
y>0.125;
y є
3-7y>5y-3;
-7y-5y>-3-3;
-12y>-6;
y<0.5;
y є