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The ordered pair to complete is not included...
To complete the ordered pair, take the given number, let's say it is (?, 3): x = ?, y = 3
Start by substituting it in for y, and solve for x
y = 4 - 5x (rearranged to slope-intercept form for simplicity)
3 = 4 - 5x
-1 = -5x
x = 1/5 = .2
The completed pair is now: (.2, 3)
For another example, let's take the given number as (8, ?), x = 8, y = ?
y = 4 - 5x
y = 4 - 5 x 8
y = 4 - 40
y = -36
(8, -36)
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