99-d=72

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Solution for 99-d=72 equation:


Simplifying
99 + -1d = 72

Solving
99 + -1d = 72

Solving for variable 'd'.

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

Add '-99' to each side of the equation.
99 + -99 + -1d = 72 + -99

Combine like terms: 99 + -99 = 0
0 + -1d = 72 + -99
-1d = 72 + -99

Combine like terms: 72 + -99 = -27
-1d = -27

Divide each side by '-1'.
d = 27

Simplifying
d = 27

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