-20=8(6d+9)

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Solution for -20=8(6d+9) equation:


Simplifying
-20 = 8(6d + 9)

Reorder the terms:
-20 = 8(9 + 6d)
-20 = (9 * 8 + 6d * 8)
-20 = (72 + 48d)

Solving
-20 = 72 + 48d

Solving for variable 'd'.

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

Add '-48d' to each side of the equation.
-20 + -48d = 72 + 48d + -48d

Combine like terms: 48d + -48d = 0
-20 + -48d = 72 + 0
-20 + -48d = 72

Add '20' to each side of the equation.
-20 + 20 + -48d = 72 + 20

Combine like terms: -20 + 20 = 0
0 + -48d = 72 + 20
-48d = 72 + 20

Combine like terms: 72 + 20 = 92
-48d = 92

Divide each side by '-48'.
d = -1.916666667

Simplifying
d = -1.916666667

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