3d+13=d+18

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Solution for 3d+13=d+18 equation:


Simplifying
3d + 13 = d + 18

Reorder the terms:
13 + 3d = d + 18

Reorder the terms:
13 + 3d = 18 + d

Solving
13 + 3d = 18 + 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.
13 + 3d + -1d = 18 + d + -1d

Combine like terms: 3d + -1d = 2d
13 + 2d = 18 + d + -1d

Combine like terms: d + -1d = 0
13 + 2d = 18 + 0
13 + 2d = 18

Add '-13' to each side of the equation.
13 + -13 + 2d = 18 + -13

Combine like terms: 13 + -13 = 0
0 + 2d = 18 + -13
2d = 18 + -13

Combine like terms: 18 + -13 = 5
2d = 5

Divide each side by '2'.
d = 2.5

Simplifying
d = 2.5

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