Question

Solve
for
x and y : x-3y=0, 3x-9y-2=0​

Answer 1

Step-by-step explanation:

$x - 3y = 0.......(1) \\ 3x - 9y = 2.....(2) \\ \\ (1)......... \: x = 3y \\ substituting \: the \: value \: of \: x \: in..(2) \\ 3 \times 3y - 9y = 2 \\ 9y - 9y = 2 \\ 0y = 2 \\ y = 2 \div 0 \\ y = 0....(3) \\ as \: x = 3y \\ x = 3 \times 0 \\ x = 0 \\ \\ therefore \: x = 0 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: y = 0$