9d-9+d+d=180

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Solution for 9d-9+d+d=180 equation:


Simplifying
9d + -9 + d + d = 180

Reorder the terms:
-9 + 9d + d + d = 180

Combine like terms: 9d + d = 10d
-9 + 10d + d = 180

Combine like terms: 10d + d = 11d
-9 + 11d = 180

Solving
-9 + 11d = 180

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 + 11d = 180 + 9

Combine like terms: -9 + 9 = 0
0 + 11d = 180 + 9
11d = 180 + 9

Combine like terms: 180 + 9 = 189
11d = 189

Divide each side by '11'.
d = 17.18181818

Simplifying
d = 17.18181818

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