2(-4d-4)+4=15-(9d-1)

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Solution for 2(-4d-4)+4=15-(9d-1) equation:


Simplifying
2(-4d + -4) + 4 = 15 + -1(9d + -1)

Reorder the terms:
2(-4 + -4d) + 4 = 15 + -1(9d + -1)
(-4 * 2 + -4d * 2) + 4 = 15 + -1(9d + -1)
(-8 + -8d) + 4 = 15 + -1(9d + -1)

Reorder the terms:
-8 + 4 + -8d = 15 + -1(9d + -1)

Combine like terms: -8 + 4 = -4
-4 + -8d = 15 + -1(9d + -1)

Reorder the terms:
-4 + -8d = 15 + -1(-1 + 9d)
-4 + -8d = 15 + (-1 * -1 + 9d * -1)
-4 + -8d = 15 + (1 + -9d)

Combine like terms: 15 + 1 = 16
-4 + -8d = 16 + -9d

Solving
-4 + -8d = 16 + -9d

Solving for variable 'd'.

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

Add '9d' to each side of the equation.
-4 + -8d + 9d = 16 + -9d + 9d

Combine like terms: -8d + 9d = 1d
-4 + 1d = 16 + -9d + 9d

Combine like terms: -9d + 9d = 0
-4 + 1d = 16 + 0
-4 + 1d = 16

Add '4' to each side of the equation.
-4 + 4 + 1d = 16 + 4

Combine like terms: -4 + 4 = 0
0 + 1d = 16 + 4
1d = 16 + 4

Combine like terms: 16 + 4 = 20
1d = 20

Divide each side by '1'.
d = 20

Simplifying
d = 20

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