30=-3d+7

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Solution for 30=-3d+7 equation:


Simplifying
30 = -3d + 7

Reorder the terms:
30 = 7 + -3d

Solving
30 = 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.
30 + 3d = 7 + -3d + 3d

Combine like terms: -3d + 3d = 0
30 + 3d = 7 + 0
30 + 3d = 7

Add '-30' to each side of the equation.
30 + -30 + 3d = 7 + -30

Combine like terms: 30 + -30 = 0
0 + 3d = 7 + -30
3d = 7 + -30

Combine like terms: 7 + -30 = -23
3d = -23

Divide each side by '3'.
d = -7.666666667

Simplifying
d = -7.666666667

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