15d+9=6d+18

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Solution for 15d+9=6d+18 equation:


Simplifying
15d + 9 = 6d + 18

Reorder the terms:
9 + 15d = 6d + 18

Reorder the terms:
9 + 15d = 18 + 6d

Solving
9 + 15d = 18 + 6d

Solving for variable 'd'.

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

Add '-6d' to each side of the equation.
9 + 15d + -6d = 18 + 6d + -6d

Combine like terms: 15d + -6d = 9d
9 + 9d = 18 + 6d + -6d

Combine like terms: 6d + -6d = 0
9 + 9d = 18 + 0
9 + 9d = 18

Add '-9' to each side of the equation.
9 + -9 + 9d = 18 + -9

Combine like terms: 9 + -9 = 0
0 + 9d = 18 + -9
9d = 18 + -9

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

Divide each side by '9'.
d = 1

Simplifying
d = 1

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