Question

solve 5(x+5) + 6(y-3)= -4 ; 9(x+1) + 4(y-2) = 4​

Answer 1

$i). \: 5(x + 5) + 6(y - 3) = - 4$

$5x + 25 + 6y - 18 = - 4$

$5x + 6y = - 4 + 18 - 25$

$5 x + 6y = - 11$

$ii). \: 9(x + 1) + 4(y - 2) = 4$

$9x + 9 + 4y - 8 = 4$

$9x + 4y = 4 - 9 + 8$

$9x + 4y = 3$