Question

While there is no rule that says you must solve a two-step equation by adding or subtracting first, why is it recommended?

Answer 1

In solving a two-step equation, it is recommended to add or subtract first because it follows the order of operations and simplifies the equation.

Step-by-step explanation:

In solving a two-step equation, it is recommended to add or subtract first because it follows the order of operations, which states that addition and subtraction should be done before multiplication and division.

By adding or subtracting first, you simplify the equation and isolate the variable, making it easier to solve.

For example, in the equation 2x + 3 = 9, you would subtract 3 from both sides to get 2x = 6. Then, you would divide both sides by 2 to get the solution x = 3.