2d+5d-7d+4d-4=12

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Solution for 2d+5d-7d+4d-4=12 equation:


Simplifying
2d + 5d + -7d + 4d + -4 = 12

Reorder the terms:
-4 + 2d + 5d + -7d + 4d = 12

Combine like terms: 2d + 5d = 7d
-4 + 7d + -7d + 4d = 12

Combine like terms: 7d + -7d = 0
-4 + 0 + 4d = 12
-4 + 4d = 12

Solving
-4 + 4d = 12

Solving for variable 'd'.

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

Add '4' to each side of the equation.
-4 + 4 + 4d = 12 + 4

Combine like terms: -4 + 4 = 0
0 + 4d = 12 + 4
4d = 12 + 4

Combine like terms: 12 + 4 = 16
4d = 16

Divide each side by '4'.
d = 4

Simplifying
d = 4

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