4(a-3d)=

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Solution for 4(a-3d)= equation: 


Simplifying
4(a + -3d) = 0
(a * 4 + -3d * 4) = 0
(4a + -12d) = 0

Solving
4a + -12d = 0

Solving for variable 'a'.

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

Add '12d' to each side of the equation.
4a + -12d + 12d = 0 + 12d

Combine like terms: -12d + 12d = 0
4a + 0 = 0 + 12d
4a = 0 + 12d
Remove the zero:
4a = 12d

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

Simplifying
a = 3d

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