7d-5-d-3=64

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Solution for 7d-5-d-3=64 equation:


Simplifying
7d + -5 + -1d + -3 = 64

Reorder the terms:
-5 + -3 + 7d + -1d = 64

Combine like terms: -5 + -3 = -8
-8 + 7d + -1d = 64

Combine like terms: 7d + -1d = 6d
-8 + 6d = 64

Solving
-8 + 6d = 64

Solving for variable 'd'.

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

Add '8' to each side of the equation.
-8 + 8 + 6d = 64 + 8

Combine like terms: -8 + 8 = 0
0 + 6d = 64 + 8
6d = 64 + 8

Combine like terms: 64 + 8 = 72
6d = 72

Divide each side by '6'.
d = 12

Simplifying
d = 12

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