ABSTRACT

Step 1 expresses the whole equation. In step 2, the number 2 has been subtracted from both sides of the equation. In step 3, both sides have been divided by 5.

An equation is, therefore, kept in balance (both sides are kept equal) by subtracting the same number from both sides, adding the same number to both, or dividing or multiplying both by the same number. Understanding this procedure, clearly, is the first step to successfully solving many equations and problems easily.