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Before, we learned how to solve
systems with two equations and two unknowns...
2 x 2's.
Here's an example of the type we
solved:
Remember that these are two lines:
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The point where the two lines
intersect is the solution:
So,
x = 2
and y = 1
work in BOTH equations. |
Now, we're going to do
3 x 3's
-- systems with three equations and three unknowns.
Like this guy:
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prohibited. |
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