3(a-4)=

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Solution for 3(a-4)= equation: 


Simplifying
3(a + -4) = 0

Reorder the terms:
3(-4 + a) = 0
(-4 * 3 + a * 3) = 0
(-12 + 3a) = 0

Solving
-12 + 3a = 0

Solving for variable 'a'.

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

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

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

Combine like terms: 0 + 12 = 12
3a = 12

Divide each side by '3'.
a = 4

Simplifying
a = 4

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