Question

Solve by elimination method: 3x – 5y + 1 = 0; 2x – y + 3 = 0

Answer 1

Answer:

$3x - 5y = - 1 \\ 2x - y = -3 \\ \\ multiplying \: 2nd \: equation \: with \: 5 \\ 2nd \: equation \: becomes \: \\ 10x - 5y = - 15 \\ 1st \: equation \: - 3rd \: equation \: (change \: the \: sign \: of \: 3rd \: equation \: and \: add) \\ = - 7x = 14 \\ x = - 2$

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