-(-d+9)=7+2d

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Solution for -(-d+9)=7+2d equation:


Simplifying
-1(-1d + 9) = 7 + 2d

Reorder the terms:
-1(9 + -1d) = 7 + 2d
(9 * -1 + -1d * -1) = 7 + 2d
(-9 + 1d) = 7 + 2d

Solving
-9 + 1d = 7 + 2d

Solving for variable 'd'.

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

Add '-2d' to each side of the equation.
-9 + 1d + -2d = 7 + 2d + -2d

Combine like terms: 1d + -2d = -1d
-9 + -1d = 7 + 2d + -2d

Combine like terms: 2d + -2d = 0
-9 + -1d = 7 + 0
-9 + -1d = 7

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

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

Combine like terms: 7 + 9 = 16
-1d = 16

Divide each side by '-1'.
d = -16

Simplifying
d = -16

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