(-4z^3+9d)-(-12z^3+2d)=

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Solution for (-4z^3+9d)-(-12z^3+2d)= equation:


Simplifying
(-4z3 + 9d) + -1(-12z3 + 2d) = 0

Reorder the terms:
(9d + -4z3) + -1(-12z3 + 2d) = 0

Remove parenthesis around (9d + -4z3)
9d + -4z3 + -1(-12z3 + 2d) = 0

Reorder the terms:
9d + -4z3 + -1(2d + -12z3) = 0
9d + -4z3 + (2d * -1 + -12z3 * -1) = 0
9d + -4z3 + (-2d + 12z3) = 0

Reorder the terms:
9d + -2d + -4z3 + 12z3 = 0

Combine like terms: 9d + -2d = 7d
7d + -4z3 + 12z3 = 0

Combine like terms: -4z3 + 12z3 = 8z3
7d + 8z3 = 0

Solving
7d + 8z3 = 0

Solving for variable 'd'.

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

Add '-8z3' to each side of the equation.
7d + 8z3 + -8z3 = 0 + -8z3

Combine like terms: 8z3 + -8z3 = 0
7d + 0 = 0 + -8z3
7d = 0 + -8z3
Remove the zero:
7d = -8z3

Divide each side by '7'.
d = -1.142857143z3

Simplifying
d = -1.142857143z3

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