3-d=4a+12

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Solution for 3-d=4a+12 equation: 


Simplifying
3 + -1d = 4a + 12

Reorder the terms:
3 + -1d = 12 + 4a

Solving
3 + -1d = 12 + 4a

Solving for variable 'd'.

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

Add '-3' to each side of the equation.
3 + -3 + -1d = 12 + -3 + 4a

Combine like terms: 3 + -3 = 0
0 + -1d = 12 + -3 + 4a
-1d = 12 + -3 + 4a

Combine like terms: 12 + -3 = 9
-1d = 9 + 4a

Divide each side by '-1'.
d = -9 + -4a

Simplifying
d = -9 + -4a

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