8(2d+9)=20-4d

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Solution for 8(2d+9)=20-4d equation:


Simplifying
8(2d + 9) = 20 + -4d

Reorder the terms:
8(9 + 2d) = 20 + -4d
(9 * 8 + 2d * 8) = 20 + -4d
(72 + 16d) = 20 + -4d

Solving
72 + 16d = 20 + -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.
72 + 16d + 4d = 20 + -4d + 4d

Combine like terms: 16d + 4d = 20d
72 + 20d = 20 + -4d + 4d

Combine like terms: -4d + 4d = 0
72 + 20d = 20 + 0
72 + 20d = 20

Add '-72' to each side of the equation.
72 + -72 + 20d = 20 + -72

Combine like terms: 72 + -72 = 0
0 + 20d = 20 + -72
20d = 20 + -72

Combine like terms: 20 + -72 = -52
20d = -52

Divide each side by '20'.
d = -2.6

Simplifying
d = -2.6

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