40=d+12.5

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Solution for 40=d+12.5 equation: 


Simplifying
40 = d + 12.5

Reorder the terms:
40 = 12.5 + d

Solving
40 = 12.5 + d

Solving for variable 'd'.

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

Add '-1d' to each side of the equation.
40 + -1d = 12.5 + d + -1d

Combine like terms: d + -1d = 0
40 + -1d = 12.5 + 0
40 + -1d = 12.5

Add '-40' to each side of the equation.
40 + -40 + -1d = 12.5 + -40

Combine like terms: 40 + -40 = 0
0 + -1d = 12.5 + -40
-1d = 12.5 + -40

Combine like terms: 12.5 + -40 = -27.5
-1d = -27.5

Divide each side by '-1'.
d = 27.5

Simplifying
d = 27.5

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