2d-2d=d-9

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Solution for 2d-2d=d-9 equation:


Simplifying
2d + -2d = d + -9

Combine like terms: 2d + -2d = 0
0 = d + -9

Reorder the terms:
0 = -9 + d

Solving
0 = -9 + d

Solving for variable 'd'.

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

Add '-1d' to each side of the equation.
0 + -1d = -9 + d + -1d
Remove the zero:
-1d = -9 + d + -1d

Combine like terms: d + -1d = 0
-1d = -9 + 0
-1d = -9

Divide each side by '-1'.
d = 9

Simplifying
d = 9

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