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In this Math tutorial, you will learn:
In previous tutorials we discussed first - order equations with one variable and second - order equations with one variable. In both types, we need a single equation to solve them because these equations contain a single variable.
Now we will build on that knowledge and explain how to deal with situations involving two variables in the same equation. Since there are many possible combinations that may return a true value, we need a second equation to calculate the exact value of the variables. In this way we obtain systems of linear equations, which are solved simultaneously, as we will see in this tutorial.
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