Keeping the variable on the left or on the right doesn’t make any difference. Our goal is to solve x by isolating it on one side of the equation. It is also called the coefficient of the term. The number is either multiplying or dividing the variable. Then, we eliminate the number “closest” to the variable.
Generally, the first step involves getting rid of the number “farthest” from the term with a variable being solved.
#Solving two variavble equation systems how to
Notice that Step 2 can alternatively be replaced by Step 3 which are the same essentially.ġ) First, add or subtract both sides of the linear equation by the same number.Ģ) Secondly, multiply or divide both sides of the linear equation by the same number.ģ)* Instead of step #2, always multiply both sides of the equation by the reciprocal of the coefficient of the variable.Įxamples of How to Solve Two-Step EquationsĮxample 1: Solve the two-step equation below.Īs the name of this linear equation suggests, it requires two steps in order to solve for the unknown variable. Note: This is the “usual” method because most of the two-step equations are solved this way. The USUAL way of solving a two-step equation: We know that we have completely solved a two-step equation if the variable, usually represented by a letter in an alphabet, is isolated on one side of the equation (either left or right) and the number is located on the opposite side. When solving an equation in general, we always keep in mind the notion that whatever we do to one side of the equation should also be done to the other side to ensure that the equation remains balanced. If this is your first encounter with two-step equations, don’t worry because we will go over enough examples to make you familiar with the process. As the name implies, two-step equations can be solved in just two steps.
There is no doubt that solving a two-step equation is extremely easy.
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