Question

2. The pair of linear equations x + 2y + 5 = 0
and -3x - 5y + 1 = 0 has *​

Answer 1

Answer:

Multiply ist equation by

$- 3$

so

$- 3x - 6y - 15 = 0 \: or \: 3x + 6y + 15 = 0$

And

$- 3x - 5y + 1 = 0 \: \: or \: \: 3x + 5y - 1 = 0$

Subtracting These two Equations, we get

$y + 16 = 0 \: \: this \: implies \: y = 16$

Put y=16 in any of these two Equations

$x = 26.33$