3(d+5)+7(2d+9)=

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Solution for 3(d+5)+7(2d+9)= equation:


Simplifying
3(d + 5) + 7(2d + 9) = 0

Reorder the terms:
3(5 + d) + 7(2d + 9) = 0
(5 * 3 + d * 3) + 7(2d + 9) = 0
(15 + 3d) + 7(2d + 9) = 0

Reorder the terms:
15 + 3d + 7(9 + 2d) = 0
15 + 3d + (9 * 7 + 2d * 7) = 0
15 + 3d + (63 + 14d) = 0

Reorder the terms:
15 + 63 + 3d + 14d = 0

Combine like terms: 15 + 63 = 78
78 + 3d + 14d = 0

Combine like terms: 3d + 14d = 17d
78 + 17d = 0

Solving
78 + 17d = 0

Solving for variable 'd'.

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

Add '-78' to each side of the equation.
78 + -78 + 17d = 0 + -78

Combine like terms: 78 + -78 = 0
0 + 17d = 0 + -78
17d = 0 + -78

Combine like terms: 0 + -78 = -78
17d = -78

Divide each side by '17'.
d = -4.588235294

Simplifying
d = -4.588235294

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