7d-13=3d

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Solution for 7d-13=3d equation:


Simplifying
7d + -13 = 3d

Reorder the terms:
-13 + 7d = 3d

Solving
-13 + 7d = 3d

Solving for variable 'd'.

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

Add '-3d' to each side of the equation.
-13 + 7d + -3d = 3d + -3d

Combine like terms: 7d + -3d = 4d
-13 + 4d = 3d + -3d

Combine like terms: 3d + -3d = 0
-13 + 4d = 0

Add '13' to each side of the equation.
-13 + 13 + 4d = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 4d = 0 + 13
4d = 0 + 13

Combine like terms: 0 + 13 = 13
4d = 13

Divide each side by '4'.
d = 3.25

Simplifying
d = 3.25

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