5d+2d-3=12+9d

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Solution for 5d+2d-3=12+9d equation:


Simplifying
5d + 2d + -3 = 12 + 9d

Reorder the terms:
-3 + 5d + 2d = 12 + 9d

Combine like terms: 5d + 2d = 7d
-3 + 7d = 12 + 9d

Solving
-3 + 7d = 12 + 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.
-3 + 7d + -9d = 12 + 9d + -9d

Combine like terms: 7d + -9d = -2d
-3 + -2d = 12 + 9d + -9d

Combine like terms: 9d + -9d = 0
-3 + -2d = 12 + 0
-3 + -2d = 12

Add '3' to each side of the equation.
-3 + 3 + -2d = 12 + 3

Combine like terms: -3 + 3 = 0
0 + -2d = 12 + 3
-2d = 12 + 3

Combine like terms: 12 + 3 = 15
-2d = 15

Divide each side by '-2'.
d = -7.5

Simplifying
d = -7.5

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