9=-d-7

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Solution for 9=-d-7 equation:


Simplifying
9 = -1d + -7

Reorder the terms:
9 = -7 + -1d

Solving
9 = -7 + -1d

Solving for variable 'd'.

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

Add 'd' to each side of the equation.
9 + d = -7 + -1d + d

Combine like terms: -1d + d = 0
9 + d = -7 + 0
9 + d = -7

Add '-9' to each side of the equation.
9 + -9 + d = -7 + -9

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

Combine like terms: -7 + -9 = -16
d = -16

Simplifying
d = -16

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