Question

X + Y = 8 ,2x + 5y = 6 solve the equation ​

Answer 1

$x + y = 8$

$x = 8 - y.......(1)$

$2x + 5y = 6.......(1)$

$\tt substituting \: (1) \: in \: (2)$

$2(8 - y) + 5y = 6$

$16 - 2y + 5y = 6$

$3y = - 10$

$\orange{y = \frac{ - 10}{3} }$

$\tt substituting \: value \: of \: (y) \: in \: (1)$

$x = 8 -( \frac{ - 10}{3} )$

$x = 8 + \frac{10}{3}$

$\orange{x = \frac{34}{3} }$

HOPE THIS HELPS!!