Question

16x + 5y = 39
4x – 3y = 31​

Answer 1

{y = 31\/5 - (16 x)\/5, y = 52 x - 31\/3}

{16 x + 5 y = 31, 156 x = 3 y + 31}

{16 x + 5 y = 31, 3 (52 x - y) = 31}

Answer 2

Step-by-step explanation:

multiply

$4x - 3y = 31$

into 4,,,,

$4(4x - 3y = 31)$

$16x - 12y = 124$

$16x + 5y = 39$

$= - 12y - 5y = 85$

$y = \frac{ - 85}{17} = - 5$

$4x - 3( - 5) = 31$

$4x + 15 = 39$

$4x = 39 - 15 = 24$

$x = \frac{24}{4}$

$x = 6$