3+d=42

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Solution for 3+d=42 equation: 


Simplifying
3 + d = 42

Solving
3 + d = 42

Solving for variable 'd'.

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

Add '-3' to each side of the equation.
3 + -3 + d = 42 + -3

Combine like terms: 3 + -3 = 0
0 + d = 42 + -3
d = 42 + -3

Combine like terms: 42 + -3 = 39
d = 39

Simplifying
d = 39

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