8d-9-3d-20=1

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Solution for 8d-9-3d-20=1 equation: 


Simplifying
8d + -9 + -3d + -20 = 1

Reorder the terms:
-9 + -20 + 8d + -3d = 1

Combine like terms: -9 + -20 = -29
-29 + 8d + -3d = 1

Combine like terms: 8d + -3d = 5d
-29 + 5d = 1

Solving
-29 + 5d = 1

Solving for variable 'd'.

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

Add '29' to each side of the equation.
-29 + 29 + 5d = 1 + 29

Combine like terms: -29 + 29 = 0
0 + 5d = 1 + 29
5d = 1 + 29

Combine like terms: 1 + 29 = 30
5d = 30

Divide each side by '5'.
d = 6

Simplifying
d = 6

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