13+5.5d=7.5

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Solution for 13+5.5d=7.5 equation: 


Simplifying
13 + 5.5d = 7.5

Solving
13 + 5.5d = 7.5

Solving for variable 'd'.

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

Add '-13' to each side of the equation.
13 + -13 + 5.5d = 7.5 + -13

Combine like terms: 13 + -13 = 0
0 + 5.5d = 7.5 + -13
5.5d = 7.5 + -13

Combine like terms: 7.5 + -13 = -5.5
5.5d = -5.5

Divide each side by '5.5'.
d = -1

Simplifying
d = -1

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