.5d-7=-28

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Solution for .5d-7=-28 equation: 


Simplifying
0.5d + -7 = -28

Reorder the terms:
-7 + 0.5d = -28

Solving
-7 + 0.5d = -28

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 + 0.5d = -28 + 7

Combine like terms: -7 + 7 = 0
0 + 0.5d = -28 + 7
0.5d = -28 + 7

Combine like terms: -28 + 7 = -21
0.5d = -21

Divide each side by '0.5'.
d = -42

Simplifying
d = -42

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