Question

What is the solution to this system of linear equations?

Answer 1

Answer:

$x = - 1$

$y = 3$

Step-by-step explanation:

$y - 4x = 7(eqn \: 1)$

$2y + 4x = 2(eqn \: 2)$

$solving \: by \: eliminating \: one \: variable$

$(y - 4x = 7)$

$+ (2y + 4x = 2)$

$3y = 9$

$y = 3$

$y - 4x = 7$

$3 - 4x = 7$

$- 4x = 7 - 3$

$\frac{ - 4x}{ - 4} = \frac{4}{ - 4}$

$x = - 1$

Answer 2

Answer:

3

Step-by-step explanation:

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