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Michael J. answered • 01/03/16 Great at Simplifying Complex Concepts and Processes 3x + 4y = -32 eq1 3x + 5y = -43 eq2 Combining equations means that we either add or subtract the equations in order to eliminate an x term or y term. We can subtract eq2 from eq1 to eliminate the x terms. -y = 11 y = -11 Now substitute this value of y into eq1 to solve for x. I'll let you complete this step on your own. Still looking for help? Get the right answer, fast.ORFind an Online Tutor Now Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.  How Do You Solve a System of Equations Using the Elimination by Subtraction Method?Note:There are many different ways to solve a system of linear equations. In this tutorial, you'll see how to solve such a system by combining the equations together in a way so that one of the variables is eliminated. Then, see how find the value of that variable and use it to find the value of the other variable. Take a look! Keywords:
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How do you solve systems of equations?To solve a system of equations using substitution:. Isolate one of the two variables in one of the equations.. Substitute the expression that is equal to the isolated variable from Step 1 into the other equation. ... . Solve the linear equation for the remaining variable.. Why do we combine equations?Combining equations is a powerful tool for solving a system of equations. Adding or subtracting two equations in order to eliminate a common variable is called the elimination method. Once one variable is eliminated, it becomes much easier to solve for the other one.
What are the 3 methods for solving systems of equations?There are three ways to solve systems of linear equations in two variables: graphing. substitution method. elimination method.
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Solve the system of equations by combining the equations
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