7d+9+-5d=

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Solution for 7d+9+-5d= equation: 


Simplifying
7d + 9 + -5d = 0

Reorder the terms:
9 + 7d + -5d = 0

Combine like terms: 7d + -5d = 2d
9 + 2d = 0

Solving
9 + 2d = 0

Solving for variable 'd'.

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

Add '-9' to each side of the equation.
9 + -9 + 2d = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 2d = 0 + -9
2d = 0 + -9

Combine like terms: 0 + -9 = -9
2d = -9

Divide each side by '2'.
d = -4.5

Simplifying
d = -4.5

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