How do you solve #-420> - 28x#?
We are given the inequality:
Swap sides. Remember to adjust the inequality sign.
Multiply both the sides of the inequality by
Remember to reverse the inequality.
Divide both sides of the inequality by
An image of the Inequality graph :
Observe that dashed line indicates the value that is not a part of the solution.
Shaded area represents the required solution.
Hope it helps.