Question

3x-y=1 + 5x+3y=25 me ayundan porfavor
​

Answer 1

Respuesta:

x=2 y=5

Explicación paso a paso:

$3x - y = 1 \: \: ( \times 3) \\ 5x + 3y = 25 \\ 9x - 3y = 3 \\ 14x = 28 \\ x = \frac{28}{14} = 2 \\ 3y = 25 - 5x \\ y = \frac{25 - 5x}{3} = \\ \frac{25 - 5 \times 2}{3} = \frac{25 - 10}{3} = \frac{15}{3} = 5$

$3x - y = 1 \\ 3 \times 2 - 5 =6 - 5 = 1 \\ 5x + 3y = 25 \\ 5 \times 2 + 3 \times 5 = 10 + 15 = 25$

espero te sirva