(3n-1)(5n+7)=d

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Solution for (3n-1)(5n+7)=d equation: 


Simplifying
(3n + -1)(5n + 7) = d

Reorder the terms:
(-1 + 3n)(5n + 7) = d

Reorder the terms:
(-1 + 3n)(7 + 5n) = d

Multiply (-1 + 3n) * (7 + 5n)
(-1(7 + 5n) + 3n * (7 + 5n)) = d
((7 * -1 + 5n * -1) + 3n * (7 + 5n)) = d
((-7 + -5n) + 3n * (7 + 5n)) = d
(-7 + -5n + (7 * 3n + 5n * 3n)) = d
(-7 + -5n + (21n + 15n2)) = d

Combine like terms: -5n + 21n = 16n
(-7 + 16n + 15n2) = d

Solving
-7 + 16n + 15n2 = d

Solving for variable 'n'.

Reorder the terms:
-7 + -1d + 16n + 15n2 = d + -1d

Combine like terms: d + -1d = 0
-7 + -1d + 16n + 15n2 = 0

The solution to this equation could not be determined.

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