3(4-2d)=30

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Solution for 3(4-2d)=30 equation: 


Simplifying
3(4 + -2d) = 30
(4 * 3 + -2d * 3) = 30
(12 + -6d) = 30

Solving
12 + -6d = 30

Solving for variable 'd'.

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

Add '-12' to each side of the equation.
12 + -12 + -6d = 30 + -12

Combine like terms: 12 + -12 = 0
0 + -6d = 30 + -12
-6d = 30 + -12

Combine like terms: 30 + -12 = 18
-6d = 18

Divide each side by '-6'.
d = -3

Simplifying
d = -3

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