20-8d=-7(3d+5)

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Solution for 20-8d=-7(3d+5) equation:


Simplifying
20 + -8d = -7(3d + 5)

Reorder the terms:
20 + -8d = -7(5 + 3d)
20 + -8d = (5 * -7 + 3d * -7)
20 + -8d = (-35 + -21d)

Solving
20 + -8d = -35 + -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.
20 + -8d + 21d = -35 + -21d + 21d

Combine like terms: -8d + 21d = 13d
20 + 13d = -35 + -21d + 21d

Combine like terms: -21d + 21d = 0
20 + 13d = -35 + 0
20 + 13d = -35

Add '-20' to each side of the equation.
20 + -20 + 13d = -35 + -20

Combine like terms: 20 + -20 = 0
0 + 13d = -35 + -20
13d = -35 + -20

Combine like terms: -35 + -20 = -55
13d = -55

Divide each side by '13'.
d = -4.230769231

Simplifying
d = -4.230769231

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