Question

If an inequality involves subtraction, you will solve it by using which operation?

Answer 1

To solve an inequality that involves subtraction, you will use the operation of addition.

The reason is that to isolate the variable, you need to undo the subtraction by performing the opposite operation, which is addition.

For example, let's say we have the inequality:

x - 5 < 10

To isolate the variable x, you need to add 5 to both sides of the inequality:

x - 5 + 5 < 10 + 5

x < 15

So the solution is x < 15.