Question

método de igualasion resolber

3x+2y=1
x-5y=9
la respuesta es​

Answer 1

Explicación paso a paso:

$3x + 2y = 1 \\ x - 5y = 9 \\ 3x + 2y = 1(1) \\ x - 5y = 9( - 3) \\ 3x + 2y = 1 \\ - 3x + 15y = - 27 \\ 17y = - 26 \\ y = \frac{ - 26}{17} \\ x - 5y = 9 \\ x - 5( \frac{ - 26}{17} ) = 9 \\ x + \frac{130}{17} = 9 \\ 17x + 130 = 9 \times 17 \\ 17x = 153 - 130 \\ x = \frac{153 - 130}{17} \\ x = \frac{23}{17}$