plot three points that are solutions of the equation 2x-y=4

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25-05-2017
Mathematics

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plot three points that are solutions of the equation 2x-y=4

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FLORC FLORC · Answer 1 · 2017-05-25T18:09:36+02:00

FLORC FLORC

25-05-2017

x=1
x=2
x=3

2(1)-y=4
2-y=4
-2 both sides
-y=2
÷-1 both sides
y=-2

(1,-2)

2(2)-y=4
4-y=4
-4 both sides
-y=0
y=0

(2,0)

2(3)-y=4
6-y=4
-6 both sides
-y=-2
÷-1 both sides
y=2

(3,2)

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psychoredhead11 psychoredhead11 · Answer 2 · 2018-09-27T15:56:28+02:00

psychoredhead11 psychoredhead11

27-09-2018

If you replace x with, for instance -1,1, and 3, you get (-1,-6), (1,-2), and (3,2) as solutions of the equation 2x-y=4

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