d-7=-8

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Solution for d-7=-8 equation: 


Simplifying
d + -7 = -8

Reorder the terms:
-7 + d = -8

Solving
-7 + d = -8

Solving for variable 'd'.

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

Add '7' to each side of the equation.
-7 + 7 + d = -8 + 7

Combine like terms: -7 + 7 = 0
0 + d = -8 + 7
d = -8 + 7

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

Simplifying
d = -1

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