a statement that the values of two mathematical expressions are equal (indicated by the sign =).
Here is how to solve the question in the above example using inverses:First, write down the expression:2a + 3 = 7.Then, undo the + 3 by subtracting 3. Remember, you need to do it to BOTH sides!2a + 3 - 3 = 7 - 3,so 2a = 4.Undo the multiply by 2 by dividing by 2, again on both sides:2a ÷ 2 = 4 ÷ 2.
