Question

x + 3y = 410
2X – 3y = 190

Answer 1

Explicación paso a paso:

$x + 3y = 410$

$2x - 3y = 190$

sumamos y restamos

$3x = 600$

$x = \frac{600}{3} = 200$

sustituimos

$200 + 3y = 410$

$3y = 410 - 200$

$3y = 210$

$y = \frac{210}{3} = 70$