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x = 4y

3x - 2y = 20

Substituting the value of x into the second equation,

3*(4y) - 2y = 20 ie 12y - 2y = 20 or 10y = 20 so that y = 2

Then x = 4y = 4*2 = 8.

So (x , y) = (8 , 2)

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Q: What are the solutions for the equations x equals 4y and 3x-2y equals 20?
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