-3(2x+7)<-9x-15
First off when do ing inequalities, The <, Flips ( Changes Direction ), When dividing by a negitive number.
ok so First Distribute the -3,
-6x -21 < -9x -15 Ok, now Get one x value alone, (doesnt matter what one eigher way youll get the same answer).
So i will +21
-6x < -9x +6 Add your remaining x's over from the side with the 6 so and the like terms are together
3x < 6 Divid by 3
x< 2 Sign doesnt flip because it was a positive number being divided..
To graph this, know that it would be an Open Circle To the Left Direction.