12=3(a-4)

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Solution for 12=3(a-4) equation:


Simplifying
12 = 3(a + -4)

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

Solving
12 = -12 + 3a

Solving for variable 'a'.

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

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

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

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

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

Combine like terms: -12 + -12 = -24
-3a = -24

Divide each side by '-3'.
a = 8

Simplifying
a = 8

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