Question

5x-2y=-3 -2x-y=-6
ayuda

Answer 1

Explicación paso a paso:

$5x - 2y = - 3 \\ - 2x - y = - 6$

$- 5x + 2y = 3 \\ 2x + 2y = 12 \\ - - - - - - - \\ - 3x = 15 \\x = - \frac {15}{ 3} \\ x = - 5$

$5x - 2y = - 3 \\ 5( - 5) - 2y = - 3 \\ - 25 - 2y = - 3 \\ - 2y = -3 + 25 \\ - 2y = 22 \\ y = - \frac{25}{2} \\ y = - 11$

$comptrobacion \\ 5x - 2y = - 3 \\ 5( - 5) - 2( - 11) = - 3 \\ - 25 + 22 = - 3 \\ - 3 = - 3$