2d+12=9d-1

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Solution for 2d+12=9d-1 equation:


Simplifying
2d + 12 = 9d + -1

Reorder the terms:
12 + 2d = 9d + -1

Reorder the terms:
12 + 2d = -1 + 9d

Solving
12 + 2d = -1 + 9d

Solving for variable 'd'.

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

Add '-9d' to each side of the equation.
12 + 2d + -9d = -1 + 9d + -9d

Combine like terms: 2d + -9d = -7d
12 + -7d = -1 + 9d + -9d

Combine like terms: 9d + -9d = 0
12 + -7d = -1 + 0
12 + -7d = -1

Add '-12' to each side of the equation.
12 + -12 + -7d = -1 + -12

Combine like terms: 12 + -12 = 0
0 + -7d = -1 + -12
-7d = -1 + -12

Combine like terms: -1 + -12 = -13
-7d = -13

Divide each side by '-7'.
d = 1.857142857

Simplifying
d = 1.857142857

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