(?,5) is on the line 4x-7y=1. Find the other half of the coordinate.

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28-03-2018
Mathematics

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(?,5) is on the line 4x-7y=1. Find the other half of the coordinate.

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susanwiederspan susanwiederspan · Answer 1 · 2018-03-28T11:52:20+02:00

susanwiederspan susanwiederspan

28-03-2018

The coordinate is an ordered pair [tex](x,y)[/tex]. We have a number, 5, for y, which we can substitute (plug-in) for y in the equation of the line and solve for x.

[tex]4x-7y=1\\4x-7(5)=1\\4x=36\\x=9[/tex]

[tex](9,5)[/tex]

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