Question

(2x + 3y = -3

( 5x + 6 y=0​

Answer 1

Explicación paso a paso:

$5x + 6y = 0 \\ 5x = 0 - 6y \\ 5x = - 6y \\ x = \frac{ - 6y}{5} \\ 2x + 3y = - 3 \\ 2 \times \frac{ - 6y}{5} + 3y = - 3 \\ \frac{ - 12y}{5} + \frac{15y}{5} = - 3 \\ \frac{3y}{5} = - 3 \\ 3y = 5 \times ( - 3) = \\ 3y = - 15 \\ y = \frac{ - 15}{3} = - 5$

$2x + 3y = - 3 \\ 2x + 3 \times ( - 5) = - 3 \\ 2x - 15 = - 3 \\ 2x = - 3 + 15 \\ 2x = 12 \\ x = \frac{12}{2} = 6$

$2 \times 6 + 3 \times ( - 5) = 12 + ( - 15) = - 3$

$5x + 6y =0 \\ 5 \times 6 + 6 \times ( - 5) = \\ = 30 - 30 = 0$

espero te sirva