Question

x+2y=9 3x-2y=-5 igualacion​

Answer 1

Explicación paso a paso:

$x + 2y = 9 \\ x = 9 - 2y \\ \\ 3x - 2y = - 5 \\ 3y = 2y - 5 \\ x= \frac{2y - 5}{3} \\ x = x \\ 9 - 2y = \frac{2y - 5}{3} \\ 3(9 - 2y) = 2y - 5 \\ 27 - 6y = 2y - 5 \\ 27 + 5 = 2y + 6y \\ 32 = 8y \\ \frac{32}{8} = y \\ 4 = y \\ x = 9 - 2(4) \\ x = 9 - 8 \\ x = 1$