-1[d+5]-4=-2[d-6]

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Solution for -1[d+5]-4=-2[d-6] equation:


Simplifying
-1[d + 5] + -4 = -2[d + -6]

Reorder the terms:
-1[5 + d] + -4 = -2[d + -6]
[5 * -1 + d * -1] + -4 = -2[d + -6]
[-5 + -1d] + -4 = -2[d + -6]

Reorder the terms:
-5 + -4 + -1d = -2[d + -6]

Combine like terms: -5 + -4 = -9
-9 + -1d = -2[d + -6]

Reorder the terms:
-9 + -1d = -2[-6 + d]
-9 + -1d = [-6 * -2 + d * -2]
-9 + -1d = [12 + -2d]

Solving
-9 + -1d = 12 + -2d

Solving for variable 'd'.

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

Add '2d' to each side of the equation.
-9 + -1d + 2d = 12 + -2d + 2d

Combine like terms: -1d + 2d = 1d
-9 + 1d = 12 + -2d + 2d

Combine like terms: -2d + 2d = 0
-9 + 1d = 12 + 0
-9 + 1d = 12

Add '9' to each side of the equation.
-9 + 9 + 1d = 12 + 9

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

Combine like terms: 12 + 9 = 21
1d = 21

Divide each side by '1'.
d = 21

Simplifying
d = 21

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