4 years ago

If the point (p,-5) is on the graph of the equation 6x-3y=21, find the value of p

1 answer:

3 0

$\bf (\stackrel{\stackrel{x}{\downarrow }}{p},\stackrel{\stackrel{y}{\downarrow }}{-5})~\hspace{10em}6x-3y=21\implies 6x-3\stackrel{\stackrel{y}{\downarrow }}{(-5)}=21 \\\\\\ 6x+15=21\implies 6x=6\implies x=\cfrac{6}{6}\implies \stackrel{\stackrel{p}{\uparrow }}{x}=1$

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