20d+2d+2d-2d-18d-1=19

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Solution for 20d+2d+2d-2d-18d-1=19 equation:


Simplifying
20d + 2d + 2d + -2d + -18d + -1 = 19

Reorder the terms:
-1 + 20d + 2d + 2d + -2d + -18d = 19

Combine like terms: 20d + 2d = 22d
-1 + 22d + 2d + -2d + -18d = 19

Combine like terms: 22d + 2d = 24d
-1 + 24d + -2d + -18d = 19

Combine like terms: 24d + -2d = 22d
-1 + 22d + -18d = 19

Combine like terms: 22d + -18d = 4d
-1 + 4d = 19

Solving
-1 + 4d = 19

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 + 4d = 19 + 1

Combine like terms: -1 + 1 = 0
0 + 4d = 19 + 1
4d = 19 + 1

Combine like terms: 19 + 1 = 20
4d = 20

Divide each side by '4'.
d = 5

Simplifying
d = 5

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