9d+75=5d-45

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Solution for 9d+75=5d-45 equation:


Simplifying
9d + 75 = 5d + -45

Reorder the terms:
75 + 9d = 5d + -45

Reorder the terms:
75 + 9d = -45 + 5d

Solving
75 + 9d = -45 + 5d

Solving for variable 'd'.

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

Add '-5d' to each side of the equation.
75 + 9d + -5d = -45 + 5d + -5d

Combine like terms: 9d + -5d = 4d
75 + 4d = -45 + 5d + -5d

Combine like terms: 5d + -5d = 0
75 + 4d = -45 + 0
75 + 4d = -45

Add '-75' to each side of the equation.
75 + -75 + 4d = -45 + -75

Combine like terms: 75 + -75 = 0
0 + 4d = -45 + -75
4d = -45 + -75

Combine like terms: -45 + -75 = -120
4d = -120

Divide each side by '4'.
d = -30

Simplifying
d = -30

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