Question

$5x + 3y = 7 \\ x - y = 3$
doy coronita si lo contestan con todo y procedimiento​

Answer 1

Explicación paso a paso:

$x - y = 3 \\ x = 3 + y \\ 5x + 3y = 7 \\ 5 \times (3 + y) + 3y = 7 \\ 15 + 5y + 3y = 7 \\ 15 + 8y = 7 \\ 8y = 7 - 15 \\ 8y = - 8 \\ y = \frac{ - 8}{8} = - 1 \\ x = 3 + y = 3 + ( - 1) = 2 \\ x = 2$

$5x + 3y = 5 \times 2 + 3( - 1) = 10 + ( - 3) = 7 \\ x - y = 2 - ( - 1) = 3$

espero te sirva