7d+13=3d+7

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Solution for 7d+13=3d+7 equation:


Simplifying
7d + 13 = 3d + 7

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

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

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

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

Combine like terms: 3d + -3d = 0
13 + 4d = 7 + 0
13 + 4d = 7

Add '-13' to each side of the equation.
13 + -13 + 4d = 7 + -13

Combine like terms: 13 + -13 = 0
0 + 4d = 7 + -13
4d = 7 + -13

Combine like terms: 7 + -13 = -6
4d = -6

Divide each side by '4'.
d = -1.5

Simplifying
d = -1.5

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