86-d=78

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Solution for 86-d=78 equation: 


Simplifying
86 + -1d = 78

Solving
86 + -1d = 78

Solving for variable 'd'.

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

Add '-86' to each side of the equation.
86 + -86 + -1d = 78 + -86

Combine like terms: 86 + -86 = 0
0 + -1d = 78 + -86
-1d = 78 + -86

Combine like terms: 78 + -86 = -8
-1d = -8

Divide each side by '-1'.
d = 8

Simplifying
d = 8

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