(4z^3+9d)-(-12z^3+d)=

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Solution for (4z^3+9d)-(-12z^3+d)= equation:


Simplifying
(4z3 + 9d) + -1(-12z3 + d) = 0

Reorder the terms:
(9d + 4z3) + -1(-12z3 + d) = 0

Remove parenthesis around (9d + 4z3)
9d + 4z3 + -1(-12z3 + d) = 0

Reorder the terms:
9d + 4z3 + -1(d + -12z3) = 0
9d + 4z3 + (d * -1 + -12z3 * -1) = 0
9d + 4z3 + (-1d + 12z3) = 0

Reorder the terms:
9d + -1d + 4z3 + 12z3 = 0

Combine like terms: 9d + -1d = 8d
8d + 4z3 + 12z3 = 0

Combine like terms: 4z3 + 12z3 = 16z3
8d + 16z3 = 0

Solving
8d + 16z3 = 0

Solving for variable 'd'.

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

Add '-16z3' to each side of the equation.
8d + 16z3 + -16z3 = 0 + -16z3

Combine like terms: 16z3 + -16z3 = 0
8d + 0 = 0 + -16z3
8d = 0 + -16z3
Remove the zero:
8d = -16z3

Divide each side by '8'.
d = -2z3

Simplifying
d = -2z3

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