7-4d-12=23

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Solution for 7-4d-12=23 equation:


Simplifying
7 + -4d + -12 = 23

Reorder the terms:
7 + -12 + -4d = 23

Combine like terms: 7 + -12 = -5
-5 + -4d = 23

Solving
-5 + -4d = 23

Solving for variable 'd'.

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

Add '5' to each side of the equation.
-5 + 5 + -4d = 23 + 5

Combine like terms: -5 + 5 = 0
0 + -4d = 23 + 5
-4d = 23 + 5

Combine like terms: 23 + 5 = 28
-4d = 28

Divide each side by '-4'.
d = -7

Simplifying
d = -7

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