9d-2d-4d-7=4d

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Solution for 9d-2d-4d-7=4d equation:


Simplifying
9d + -2d + -4d + -7 = 4d

Reorder the terms:
-7 + 9d + -2d + -4d = 4d

Combine like terms: 9d + -2d = 7d
-7 + 7d + -4d = 4d

Combine like terms: 7d + -4d = 3d
-7 + 3d = 4d

Solving
-7 + 3d = 4d

Solving for variable 'd'.

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

Add '-4d' to each side of the equation.
-7 + 3d + -4d = 4d + -4d

Combine like terms: 3d + -4d = -1d
-7 + -1d = 4d + -4d

Combine like terms: 4d + -4d = 0
-7 + -1d = 0

Add '7' to each side of the equation.
-7 + 7 + -1d = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -1d = 0 + 7
-1d = 0 + 7

Combine like terms: 0 + 7 = 7
-1d = 7

Divide each side by '-1'.
d = -7

Simplifying
d = -7

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