12-(6-4d)=25-9d

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Solution for 12-(6-4d)=25-9d equation:


Simplifying
12 + -1(6 + -4d) = 25 + -9d
12 + (6 * -1 + -4d * -1) = 25 + -9d
12 + (-6 + 4d) = 25 + -9d

Combine like terms: 12 + -6 = 6
6 + 4d = 25 + -9d

Solving
6 + 4d = 25 + -9d

Solving for variable 'd'.

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

Add '9d' to each side of the equation.
6 + 4d + 9d = 25 + -9d + 9d

Combine like terms: 4d + 9d = 13d
6 + 13d = 25 + -9d + 9d

Combine like terms: -9d + 9d = 0
6 + 13d = 25 + 0
6 + 13d = 25

Add '-6' to each side of the equation.
6 + -6 + 13d = 25 + -6

Combine like terms: 6 + -6 = 0
0 + 13d = 25 + -6
13d = 25 + -6

Combine like terms: 25 + -6 = 19
13d = 19

Divide each side by '13'.
d = 1.461538462

Simplifying
d = 1.461538462

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