-d-21=-310

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Solution for -d-21=-310 equation:


Simplifying
-1d + -21 = -310

Reorder the terms:
-21 + -1d = -310

Solving
-21 + -1d = -310

Solving for variable 'd'.

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

Add '21' to each side of the equation.
-21 + 21 + -1d = -310 + 21

Combine like terms: -21 + 21 = 0
0 + -1d = -310 + 21
-1d = -310 + 21

Combine like terms: -310 + 21 = -289
-1d = -289

Divide each side by '-1'.
d = 289

Simplifying
d = 289

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