7d+3=31

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Solution for 7d+3=31 equation: 


Simplifying
7d + 3 = 31

Reorder the terms:
3 + 7d = 31

Solving
3 + 7d = 31

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 + 7d = 31 + -3

Combine like terms: 3 + -3 = 0
0 + 7d = 31 + -3
7d = 31 + -3

Combine like terms: 31 + -3 = 28
7d = 28

Divide each side by '7'.
d = 4

Simplifying
d = 4

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