8d+9=5d+30

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Solution for 8d+9=5d+30 equation:


Simplifying
8d + 9 = 5d + 30

Reorder the terms:
9 + 8d = 5d + 30

Reorder the terms:
9 + 8d = 30 + 5d

Solving
9 + 8d = 30 + 5d

Solving for variable 'd'.

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

Add '-5d' to each side of the equation.
9 + 8d + -5d = 30 + 5d + -5d

Combine like terms: 8d + -5d = 3d
9 + 3d = 30 + 5d + -5d

Combine like terms: 5d + -5d = 0
9 + 3d = 30 + 0
9 + 3d = 30

Add '-9' to each side of the equation.
9 + -9 + 3d = 30 + -9

Combine like terms: 9 + -9 = 0
0 + 3d = 30 + -9
3d = 30 + -9

Combine like terms: 30 + -9 = 21
3d = 21

Divide each side by '3'.
d = 7

Simplifying
d = 7

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