7(d+3)-5d=d-8

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Solution for 7(d+3)-5d=d-8 equation:


Simplifying
7(d + 3) + -5d = d + -8

Reorder the terms:
7(3 + d) + -5d = d + -8
(3 * 7 + d * 7) + -5d = d + -8
(21 + 7d) + -5d = d + -8

Combine like terms: 7d + -5d = 2d
21 + 2d = d + -8

Reorder the terms:
21 + 2d = -8 + d

Solving
21 + 2d = -8 + d

Solving for variable 'd'.

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

Add '-1d' to each side of the equation.
21 + 2d + -1d = -8 + d + -1d

Combine like terms: 2d + -1d = 1d
21 + 1d = -8 + d + -1d

Combine like terms: d + -1d = 0
21 + 1d = -8 + 0
21 + 1d = -8

Add '-21' to each side of the equation.
21 + -21 + 1d = -8 + -21

Combine like terms: 21 + -21 = 0
0 + 1d = -8 + -21
1d = -8 + -21

Combine like terms: -8 + -21 = -29
1d = -29

Divide each side by '1'.
d = -29

Simplifying
d = -29

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