12-19d+15d=

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Solution for 12-19d+15d= equation: 


Simplifying
12 + -19d + 15d = 0

Combine like terms: -19d + 15d = -4d
12 + -4d = 0

Solving
12 + -4d = 0

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 + -4d = 0 + -12

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

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

Divide each side by '-4'.
d = 3

Simplifying
d = 3

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