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Assuming y=2x+5 and x=2y-15

y=2x+5 (1)

x=2y-15 (2)

Substitute y=2x+5 into (2):

x=2(2x+5)-15

x=4x+10-15

0=3x+10-15

0=3x-5

5=3x

5/3=x (x=5/3)

Substitute x=5/3 into y=2x+5:

y=2(5/3)+5

y=10/3+5

y=25/3

x=5/3, y=25/3

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Q: What is the solution to y-2x 5 and x-2y-15?
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