7d-13=71

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Solution for 7d-13=71 equation: 


Simplifying
7d + -13 = 71

Reorder the terms:
-13 + 7d = 71

Solving
-13 + 7d = 71

Solving for variable 'd'.

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

Add '13' to each side of the equation.
-13 + 13 + 7d = 71 + 13

Combine like terms: -13 + 13 = 0
0 + 7d = 71 + 13
7d = 71 + 13

Combine like terms: 71 + 13 = 84
7d = 84

Divide each side by '7'.
d = 12

Simplifying
d = 12

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