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Solve for x & y. 30x−42y=−6 and 5x−7y=−1

User Oliora
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1 Answer

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Um.. Both of those equations are the exact same. Divide both sides of the first equation by 6. You get:


(30x - 42y)/(6) = (-6)/(6) \\ 5x - 7y = -1

That is the exact same as the second equation. This system has an infinite number of solutions. 5x - 7y = -1 is a line, so basically every point on that line is a solution to the system.

For example,
x = 0 and
y = (1)/(7) would work, but so would
x = 1 and
y = (6)/(7)
User AmphibianTrading
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