3d-4(5d+6)-(d-7)=4d+5

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Solution for 3d-4(5d+6)-(d-7)=4d+5 equation:


Simplifying
3d + -4(5d + 6) + -1(d + -7) = 4d + 5

Reorder the terms:
3d + -4(6 + 5d) + -1(d + -7) = 4d + 5
3d + (6 * -4 + 5d * -4) + -1(d + -7) = 4d + 5
3d + (-24 + -20d) + -1(d + -7) = 4d + 5

Reorder the terms:
3d + -24 + -20d + -1(-7 + d) = 4d + 5
3d + -24 + -20d + (-7 * -1 + d * -1) = 4d + 5
3d + -24 + -20d + (7 + -1d) = 4d + 5

Reorder the terms:
-24 + 7 + 3d + -20d + -1d = 4d + 5

Combine like terms: -24 + 7 = -17
-17 + 3d + -20d + -1d = 4d + 5

Combine like terms: 3d + -20d = -17d
-17 + -17d + -1d = 4d + 5

Combine like terms: -17d + -1d = -18d
-17 + -18d = 4d + 5

Reorder the terms:
-17 + -18d = 5 + 4d

Solving
-17 + -18d = 5 + 4d

Solving for variable 'd'.

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

Add '-4d' to each side of the equation.
-17 + -18d + -4d = 5 + 4d + -4d

Combine like terms: -18d + -4d = -22d
-17 + -22d = 5 + 4d + -4d

Combine like terms: 4d + -4d = 0
-17 + -22d = 5 + 0
-17 + -22d = 5

Add '17' to each side of the equation.
-17 + 17 + -22d = 5 + 17

Combine like terms: -17 + 17 = 0
0 + -22d = 5 + 17
-22d = 5 + 17

Combine like terms: 5 + 17 = 22
-22d = 22

Divide each side by '-22'.
d = -1

Simplifying
d = -1

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