5(3d+1)=2d-21

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Solution for 5(3d+1)=2d-21 equation:


Simplifying
5(3d + 1) = 2d + -21

Reorder the terms:
5(1 + 3d) = 2d + -21
(1 * 5 + 3d * 5) = 2d + -21
(5 + 15d) = 2d + -21

Reorder the terms:
5 + 15d = -21 + 2d

Solving
5 + 15d = -21 + 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.
5 + 15d + -2d = -21 + 2d + -2d

Combine like terms: 15d + -2d = 13d
5 + 13d = -21 + 2d + -2d

Combine like terms: 2d + -2d = 0
5 + 13d = -21 + 0
5 + 13d = -21

Add '-5' to each side of the equation.
5 + -5 + 13d = -21 + -5

Combine like terms: 5 + -5 = 0
0 + 13d = -21 + -5
13d = -21 + -5

Combine like terms: -21 + -5 = -26
13d = -26

Divide each side by '13'.
d = -2

Simplifying
d = -2

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