How do you solve $2 x + 3 y = 20$ $2x + 3y = 20$ and $- 4 x - 6 y = - 28$ $-4x - 6y = -28$ ?

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How do you solve $2 x + 3 y = 20$ $2x + 3y = 20$ and $- 4 x - 6 y = - 28$ $-4x - 6y = -28$ ?

1 Answer

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Answer 1 · 2016-08-01T10:41:27

This pair of equations has no solution; they represent a pair of parallel lines.

Explanation:

Notice that the left side of the second equation is exactly $(- 2)$ $(-2)$ times the left side of the first equation, so th4e equations are either co-incident or parallel.
The right side of the second equation is not $(- 2)$ $(-2)$ times the right side of the first equation; therefore the equations are parallel.

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How do you solve $2 x + 3 y = 20$ $2x + 3y = 20$ and $- 4 x - 6 y = - 28$ $-4x - 6y = -28$ ?

1 Answer

Explanation:

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How do you solve 2x+3y=202x + 3y = 20 and −4x−6y=−28-4x - 6y = -28 ?

1 Answer

Explanation:

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How do you solve $2 x + 3 y = 20$ $2x + 3y = 20$ and $- 4 x - 6 y = - 28$ $-4x - 6y = -28$ ?