3d-(9-2d)=51

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Solution for 3d-(9-2d)=51 equation:


Simplifying
3d + -1(9 + -2d) = 51
3d + (9 * -1 + -2d * -1) = 51
3d + (-9 + 2d) = 51

Reorder the terms:
-9 + 3d + 2d = 51

Combine like terms: 3d + 2d = 5d
-9 + 5d = 51

Solving
-9 + 5d = 51

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 + 5d = 51 + 9

Combine like terms: -9 + 9 = 0
0 + 5d = 51 + 9
5d = 51 + 9

Combine like terms: 51 + 9 = 60
5d = 60

Divide each side by '5'.
d = 12

Simplifying
d = 12

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