Sal solves the system of equations x + 2y = 6 and 4x - 2y = 14 using
Let's just do one and you'll see how it works: See how these guys are the same, but with a different sign?
Theory: In the '
You now know the substitution method. Another method is called the
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Chapter:Solving Linear SystemsSection:The Linear Combination Method (aka
The Addition Method, aka the
Another way of solving a linear system is to use the
Solve this system of equations using the addition or subtraction