Question

7x+3y-2z=16 2x+5y+3z=39 5x-y+5z=31 igualación ayuda ya casi entro a clases ​

Answer 1

☁️Hola☁️

$7x + 3y - 2z = 16 \\ 7x - 2z = 16 - 3y \\ 7x = 16 - 3y + 2z \\ x = \frac{16 - 3y + 2z}{7}$

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$2x + 5y + 3z = 39 \\ 2x + 3z = 39 - 5y \\ 2x = 39 - 5y - 3z \\ x = \frac{39 - 5y - 3z}{2}$

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$5x - y + 5z = 31 \\ 5x + 5z = 31 + y \\5(x + z) = 31 + y \\ x + z = \frac{31 + y}{5} \\ x = \frac{31 + y}{5} - z$

✉️:✨Awika✨