7d-12+3d=12

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Solution for 7d-12+3d=12 equation: 


Simplifying
7d + -12 + 3d = 12

Reorder the terms:
-12 + 7d + 3d = 12

Combine like terms: 7d + 3d = 10d
-12 + 10d = 12

Solving
-12 + 10d = 12

Solving for variable 'd'.

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

Add '12' to each side of the equation.
-12 + 12 + 10d = 12 + 12

Combine like terms: -12 + 12 = 0
0 + 10d = 12 + 12
10d = 12 + 12

Combine like terms: 12 + 12 = 24
10d = 24

Divide each side by '10'.
d = 2.4

Simplifying
d = 2.4

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