7d-12+3=18

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Solution for 7d-12+3=18 equation: 


Simplifying
7d + -12 + 3 = 18

Reorder the terms:
-12 + 3 + 7d = 18

Combine like terms: -12 + 3 = -9
-9 + 7d = 18

Solving
-9 + 7d = 18

Solving for variable 'd'.

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

Add '9' to each side of the equation.
-9 + 9 + 7d = 18 + 9

Combine like terms: -9 + 9 = 0
0 + 7d = 18 + 9
7d = 18 + 9

Combine like terms: 18 + 9 = 27
7d = 27

Divide each side by '7'.
d = 3.857142857

Simplifying
d = 3.857142857

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