The inverse operation for addition ... solve any equation, you need to find the value of the unknown variable by performing the same operations on both sides. To solve an equation, more than one ...

In order to get the correct answer, one has to ... After solving 3 x 3 and 3 ÷ 3, the equation becomes 9 - 1 + 3. From there, some simple addition and subtraction reveals the final result of ...