3d-2d-1=18

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Solution for 3d-2d-1=18 equation:


Simplifying
3d + -2d + -1 = 18

Reorder the terms:
-1 + 3d + -2d = 18

Combine like terms: 3d + -2d = 1d
-1 + 1d = 18

Solving
-1 + 1d = 18

Solving for variable 'd'.

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

Add '1' to each side of the equation.
-1 + 1 + 1d = 18 + 1

Combine like terms: -1 + 1 = 0
0 + 1d = 18 + 1
1d = 18 + 1

Combine like terms: 18 + 1 = 19
1d = 19

Divide each side by '1'.
d = 19

Simplifying
d = 19

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