9-d=-3

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Solution for 9-d=-3 equation: 


Simplifying
9 + -1d = -3

Solving
9 + -1d = -3

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 + -1d = -3 + -9

Combine like terms: 9 + -9 = 0
0 + -1d = -3 + -9
-1d = -3 + -9

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

Divide each side by '-1'.
d = 12

Simplifying
d = 12

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