4(3+d)=d

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Solution for 4(3+d)=d equation:


Simplifying
4(3 + d) = d
(3 * 4 + d * 4) = d
(12 + 4d) = d

Solving
12 + 4d = d

Solving for variable 'd'.

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

Add '-1d' to each side of the equation.
12 + 4d + -1d = d + -1d

Combine like terms: 4d + -1d = 3d
12 + 3d = d + -1d

Combine like terms: d + -1d = 0
12 + 3d = 0

Add '-12' to each side of the equation.
12 + -12 + 3d = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 3d = 0 + -12
3d = 0 + -12

Combine like terms: 0 + -12 = -12
3d = -12

Divide each side by '3'.
d = -4

Simplifying
d = -4

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