0.5(d-1)=2.5

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Solution for 0.5(d-1)=2.5 equation: 


Simplifying
0.5(d + -1) = 2.5

Reorder the terms:
0.5(-1 + d) = 2.5
(-1 * 0.5 + d * 0.5) = 2.5
(-0.5 + 0.5d) = 2.5

Solving
-0.5 + 0.5d = 2.5

Solving for variable 'd'.

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

Add '0.5' to each side of the equation.
-0.5 + 0.5 + 0.5d = 2.5 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + 0.5d = 2.5 + 0.5
0.5d = 2.5 + 0.5

Combine like terms: 2.5 + 0.5 = 3
0.5d = 3

Divide each side by '0.5'.
d = 6

Simplifying
d = 6

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