9(d+-20)=-315

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Solution for 9(d+-20)=-315 equation: 


Simplifying
9(d + -20) = -315

Reorder the terms:
9(-20 + d) = -315
(-20 * 9 + d * 9) = -315
(-180 + 9d) = -315

Solving
-180 + 9d = -315

Solving for variable 'd'.

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

Add '180' to each side of the equation.
-180 + 180 + 9d = -315 + 180

Combine like terms: -180 + 180 = 0
0 + 9d = -315 + 180
9d = -315 + 180

Combine like terms: -315 + 180 = -135
9d = -135

Divide each side by '9'.
d = -15

Simplifying
d = -15

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