15=2nd+3n

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Solution for 15=2nd+3n equation:


Simplifying
15 = 2nd + 3n

Solving
15 = 2dn + 3n

Solving for variable 'd'.

Move all terms containing d to the left, all other terms to the right.

Add '-2dn' to each side of the equation.
15 + -2dn = 2dn + -2dn + 3n

Combine like terms: 2dn + -2dn = 0
15 + -2dn = 0 + 3n
15 + -2dn = 3n

Add '-15' to each side of the equation.
15 + -15 + -2dn = -15 + 3n

Combine like terms: 15 + -15 = 0
0 + -2dn = -15 + 3n
-2dn = -15 + 3n

Divide each side by '-2n'.
d = 7.5n-1 + -1.5

Simplifying
d = 7.5n-1 + -1.5

Reorder the terms:
d = -1.5 + 7.5n-1

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