Question

X-15y=11
2x + 3y = -4​

Answer 1

Question no. 1:

$x - 15y = 11 \\ solution \\ = x - 15y = 11 \\ = x - y = \frac{11}{15}$[/tex]

Question on. 2:

[tex]2x + 3y = - 4 \\ solution \\ = 2x + 3y = - 4 \\ = 2x + y = - 4 \times 3\\ = 2x + y = - 12 \\ = x + y = - 12 \times 2 \\ = x + y = - 24[\tex]