3d+12=d+11

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Solution for 3d+12=d+11 equation:


Simplifying
3d + 12 = d + 11

Reorder the terms:
12 + 3d = d + 11

Reorder the terms:
12 + 3d = 11 + d

Solving
12 + 3d = 11 + d

Solving for variable 'd'.

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

Add '-1d' to each side of the equation.
12 + 3d + -1d = 11 + d + -1d

Combine like terms: 3d + -1d = 2d
12 + 2d = 11 + d + -1d

Combine like terms: d + -1d = 0
12 + 2d = 11 + 0
12 + 2d = 11

Add '-12' to each side of the equation.
12 + -12 + 2d = 11 + -12

Combine like terms: 12 + -12 = 0
0 + 2d = 11 + -12
2d = 11 + -12

Combine like terms: 11 + -12 = -1
2d = -1

Divide each side by '2'.
d = -0.5

Simplifying
d = -0.5

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