Question

solve by elemination
y= 2x-3 and 2y= 5x-8
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Answer 1

Answer:

$y = 2x - 3 \\ 3 = 2x - y \\ 2x - y = 3 \\ 2y = 5x - 8 \\ 8 = 5x - 2y \\ 5x - 2y = 8 \\ the \: two \: equations \: are \: \\ 2x - y = 3 \\ and \: \\ 5x - 2y = 8$

$eq \: {i} \: \times 2 = 4x - 2y = 6 \\ eq \: {ii} \: \times1 = 5x - 2y = 8 \\ - - - - - - - - - - - - - \\ \: \\ - x = - 2 \\ x = 2 \\ substituiting \: the \: value \: of \: x \: in \: eq \: i \\ 2x - y = 3 \\ 2 \times 2 - y = 3 \\ 4 - y = 3 \\ - y = - 1 \\ y = 1$

So the value of x is 2 and y is 1.

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Answer 2

Your correct answer is 1

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