Question

the sum of two numbers is 8 and their difference is four. find the numbers with explanation..

Answer 1

Hope it helps u ^_^

@skb

Answer 2

$hey\: mate \: here \: is \: your \: answer...$
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$let \: the \: numbers \: be \: x \: and \: y$
$according \: to \: question$
$x + y = 8 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: - (1)$

$x - y = 4 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: - (2)$

$after \: eliminating \: equation \: (1) \\ \: and \: (2)\: \\ \: \: \: \: \: \: \: \: \: \: you \: get$


$x = 12$

$on \: putting \: the\: value \: of \: x \: in \: \\ equation \: (1)$
$12 + y = 8$
$\: \: \: \: \: \: \: \: \: \: y = 8 - 12 \\ \: \: \: \: \: \: \: \: \: \: y = - 4$


$hence \: the \: numbers \: are \: 12 \: and \: \\ - 4$


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$hope \: it \: helps.....$