Question

2x+3y=-1
5x+3y=2
metodo de igualación por favor.​

Answer 1

Explicación paso a paso:

$2x + 3y = - 1 \\ 2x = - 1 - 3y \\ x = \frac{ - 1 - 3y}{2}$

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

$\frac{ - 1 - 3y}{2} = \frac{2 - 3y}{5} \\ - 5 - 15y = 4 - 6y \\ - 4 - 5 = - 6y + 15y \\ - 9 = 9y \\ y = \frac{ - 9}{9} = - 1$

$x = \frac{2 - 3y}{5} = \frac{2 - 3 \times ( - 1}{5} = \frac{2 + 3}{5} = \frac{5}{5} = 1$

$2 \times 1 + 3 \times - 1 = - 1 \\ 5 \times 1 + 3 \times - 1 = 2$