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 = -2
d = -2

Simplifying
d = -2

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