13=3d+7

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Solution for 13=3d+7 equation:


Simplifying
13 = 3d + 7

Reorder the terms:
13 = 7 + 3d

Solving
13 = 7 + 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 + -3d = 7 + 3d + -3d

Combine like terms: 3d + -3d = 0
13 + -3d = 7 + 0
13 + -3d = 7

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

Combine like terms: 13 + -13 = 0
0 + -3d = 7 + -13
-3d = 7 + -13

Combine like terms: 7 + -13 = -6
-3d = -6

Divide each side by '-3'.
d = 2

Simplifying
d = 2

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