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Suppose a and b are integers. How many solutions are there to the equation \($ab = 2a + 3b?$\)thx in advance!cool

 Jul 10, 2018
edited by Dr.Amione  Jul 10, 2018
 #1
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ab = 2a + 3b
a = (3 b)/(b - 2), and b cannot=2
b = (2 a)/(a - 3), and a cannot=3

Solutions:
a = -3, b = 1
a = 0, b = 0
a = 1, b = -1
a = 2, b = -4
a = 4, b = 8
a = 5, b = 5
a = 6, b = 4
a = 9, b = 3

 Jul 10, 2018

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