-91=-7d

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Solution for -91=-7d equation:


Simplifying
-91 = -7d

Solving
-91 = -7d

Solving for variable 'd'.

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

Add '7d' to each side of the equation.
-91 + 7d = -7d + 7d

Combine like terms: -7d + 7d = 0
-91 + 7d = 0

Add '91' to each side of the equation.
-91 + 91 + 7d = 0 + 91

Combine like terms: -91 + 91 = 0
0 + 7d = 0 + 91
7d = 0 + 91

Combine like terms: 0 + 91 = 91
7d = 91

Divide each side by '7'.
d = 13

Simplifying
d = 13

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