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Q: 4x + 4y = 4/5 y = 5x - 1
A: 4x + 4y = 4/5 y = 5x - 1 4x + 4(5x - 1) = 4/5 4x + 20x - 4 = 4/5 24x - 4 = 4/5 24x = 4/5 + 4 24x = 24/5 x = (24/5)/24 x = 1/5 y = 5(1/5) - 1 y = 1 - 1 y = 0 Solution set: (1/5, 0)
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Asked 9/9/2012 2:27:33 PM
Updated 203 days ago|12/3/2017 5:29:04 AM
1 Answer/Comment
Edited by Masamune [12/3/2017 5:26:20 AM]
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4x + 4y = 4/5
y = 5x - 1

4x + 4(5x - 1) = 4/5
4x + 20x - 4 = 4/5
24x - 4 = 4/5
24x = 4/5 + 4
24x = 24/5
x = (24/5)/24
x = 1/5

y = 5(1/5) - 1
y = 1 - 1
y = 0

Solution set: (1/5, 0)
Added 203 days ago|12/3/2017 5:29:04 AM
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