1d-9=4

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Solution for 1d-9=4 equation: 


Simplifying
1d + -9 = 4

Reorder the terms:
-9 + 1d = 4

Solving
-9 + 1d = 4

Solving for variable 'd'.

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

Add '9' to each side of the equation.
-9 + 9 + 1d = 4 + 9

Combine like terms: -9 + 9 = 0
0 + 1d = 4 + 9
1d = 4 + 9

Combine like terms: 4 + 9 = 13
1d = 13

Divide each side by '1'.
d = 13

Simplifying
d = 13

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