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Graphical Method of Finding Solution of a Pair of Linear Equations

Determine, by...

Question

Determine, by drawing graphs, whether the following system of linear equation has a unique solution or not:
$2 x - 3 y = 6, x + y = 1$

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Solution

We can see in the graph that two lines at a point $(\frac{9}{5}, \frac{- 4}{5})$

$∴$ System of equations has a unique solution

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