-8d+9=-4d-9-7d

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Solution for -8d+9=-4d-9-7d equation:


Simplifying
-8d + 9 = -4d + -9 + -7d

Reorder the terms:
9 + -8d = -4d + -9 + -7d

Reorder the terms:
9 + -8d = -9 + -4d + -7d

Combine like terms: -4d + -7d = -11d
9 + -8d = -9 + -11d

Solving
9 + -8d = -9 + -11d

Solving for variable 'd'.

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

Add '11d' to each side of the equation.
9 + -8d + 11d = -9 + -11d + 11d

Combine like terms: -8d + 11d = 3d
9 + 3d = -9 + -11d + 11d

Combine like terms: -11d + 11d = 0
9 + 3d = -9 + 0
9 + 3d = -9

Add '-9' to each side of the equation.
9 + -9 + 3d = -9 + -9

Combine like terms: 9 + -9 = 0
0 + 3d = -9 + -9
3d = -9 + -9

Combine like terms: -9 + -9 = -18
3d = -18

Divide each side by '3'.
d = -6

Simplifying
d = -6

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