3(a-4)=a

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


Simplifying
3(a + -4) = a

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

Solving
-12 + 3a = a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-12 + 3a + -1a = a + -1a

Combine like terms: 3a + -1a = 2a
-12 + 2a = a + -1a

Combine like terms: a + -1a = 0
-12 + 2a = 0

Add '12' to each side of the equation.
-12 + 12 + 2a = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 2a = 0 + 12
2a = 0 + 12

Combine like terms: 0 + 12 = 12
2a = 12

Divide each side by '2'.
a = 6

Simplifying
a = 6

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