Question

Use _________ to isolate the variable. A reciprocals B subtraction C an expression D inverse operations

Answer 1

Answer: D) inverse operations

For example, let's say we had the equation x+10 = 30

We are adding 10 onto some unknown number x to get 30. To find x, we undo what is happening to x, so we subtract 10 from both sides. Subtraction is the inverse operation of addition.