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How do you complete the ordered pair (5, y) given –5x + y = –4?

1 Answer

Aug 24, 2016

$(5, y) = 5, 21$ $(5,y)=color(green)(5,21)$

Explanation:

$(5, y)$ $(5,y)$ implies $x = 5$ $x=5$

Substituting $5$ $color(red)(5)$ for $x$ $x$ in $- 5 x + y = 4$ $-5x+y=4$ gives

$XXX - 5 \times 5 + y = 4$ $color(white)("XXX")-5color(red)(xx5)+y=4$

$XXX - 25 + y = - 4$ $color(white)("XXX")-25+y=-4$

$color(white0("XXX")y=21$

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