Question

6
7x - 4y = -10
x - 4y = 2

Explanation:

Step1: Subtract the two equations

$(7x - 4y) - (x - 4y) = -10 - 2$
Simplify: $7x - 4y - x + 4y = -12$
$6x = -12$

Step2: Solve for $x$

$x = \frac{-12}{6} = -2$

Step3: Substitute $x=-2$ into second equation

$-2 - 4y = 2$

Step4: Solve for $y$

$-4y = 2 + 2$
$-4y = 4$
$y = \frac{4}{-4} = -1$

Answer:

$x=-2$, $y=-1$