5[-6-3D]=3[8+7D]

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Solution for 5[-6-3D]=3[8+7D] equation:


Simplifying
5[-6 + -3D] = 3[8 + 7D]
[-6 * 5 + -3D * 5] = 3[8 + 7D]
[-30 + -15D] = 3[8 + 7D]
-30 + -15D = [8 * 3 + 7D * 3]
-30 + -15D = [24 + 21D]

Solving
-30 + -15D = 24 + 21D

Solving for variable 'D'.

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

Add '-21D' to each side of the equation.
-30 + -15D + -21D = 24 + 21D + -21D

Combine like terms: -15D + -21D = -36D
-30 + -36D = 24 + 21D + -21D

Combine like terms: 21D + -21D = 0
-30 + -36D = 24 + 0
-30 + -36D = 24

Add '30' to each side of the equation.
-30 + 30 + -36D = 24 + 30

Combine like terms: -30 + 30 = 0
0 + -36D = 24 + 30
-36D = 24 + 30

Combine like terms: 24 + 30 = 54
-36D = 54

Divide each side by '-36'.
D = -1.5

Simplifying
D = -1.5

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