3=d+7

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Solution for 3=d+7 equation:


Simplifying
3 = d + 7

Reorder the terms:
3 = 7 + d

Solving
3 = 7 + 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.
3 + -1d = 7 + d + -1d

Combine like terms: d + -1d = 0
3 + -1d = 7 + 0
3 + -1d = 7

Add '-3' to each side of the equation.
3 + -3 + -1d = 7 + -3

Combine like terms: 3 + -3 = 0
0 + -1d = 7 + -3
-1d = 7 + -3

Combine like terms: 7 + -3 = 4
-1d = 4

Divide each side by '-1'.
d = -4

Simplifying
d = -4

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