Question

Solve the equation graphically
3x+y+1=0,2x-3y+8=0

Answer 1

$3x + y + 1 = 0 \\ \\ (x) = 1 \\ (y) = 1 \: here \: (x) \: and \: (y) \: is \: not \: \\ same \: it \: is \: why \: we \: are \: taking \: ( - )\\ 3x - y + 1 = 0 \\ (x) = 1 \\ \\ 3 - 1 + y + 1 \\ \\ 2 - 2 \\ \\ = 0 \\ \\ \\ 2x - 3y + 8 = 0 \\ \\ 2x - 3x + 8 = 0 \\ \\ 2x \: 2 + 3 + 8 = 0 \\ \\ 2x5 + 8 = 0 \\ (x) = 1 \\ \\ 2 + 1 = 3 + 5 - 8 = 0 \\ \\ 8 - 8 \\ = 0$