-5d+9=-12+2d

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


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

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

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

Solving for variable 'd'.

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

Add '-2d' to each side of the equation.
9 + -5d + -2d = -12 + 2d + -2d

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

Combine like terms: 2d + -2d = 0
9 + -7d = -12 + 0
9 + -7d = -12

Add '-9' to each side of the equation.
9 + -9 + -7d = -12 + -9

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

Combine like terms: -12 + -9 = -21
-7d = -21

Divide each side by '-7'.
d = 3

Simplifying
d = 3

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