11d+9=4d+30

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Solution for 11d+9=4d+30 equation:


Simplifying
11d + 9 = 4d + 30

Reorder the terms:
9 + 11d = 4d + 30

Reorder the terms:
9 + 11d = 30 + 4d

Solving
9 + 11d = 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.
9 + 11d + -4d = 30 + 4d + -4d

Combine like terms: 11d + -4d = 7d
9 + 7d = 30 + 4d + -4d

Combine like terms: 4d + -4d = 0
9 + 7d = 30 + 0
9 + 7d = 30

Add '-9' to each side of the equation.
9 + -9 + 7d = 30 + -9

Combine like terms: 9 + -9 = 0
0 + 7d = 30 + -9
7d = 30 + -9

Combine like terms: 30 + -9 = 21
7d = 21

Divide each side by '7'.
d = 3

Simplifying
d = 3

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