30=5d-d

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Solution for 30=5d-d equation:


Simplifying
30 = 5d + -1d

Combine like terms: 5d + -1d = 4d
30 = 4d

Solving
30 = 4d

Solving for variable 'd'.

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

Add '-4d' to each side of the equation.
30 + -4d = 4d + -4d

Combine like terms: 4d + -4d = 0
30 + -4d = 0

Add '-30' to each side of the equation.
30 + -30 + -4d = 0 + -30

Combine like terms: 30 + -30 = 0
0 + -4d = 0 + -30
-4d = 0 + -30

Combine like terms: 0 + -30 = -30
-4d = -30

Divide each side by '-4'.
d = 7.5

Simplifying
d = 7.5

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