12[3-1a]=24

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Solution for 12[3-1a]=24 equation: 


Simplifying
12[3 + -1a] = 24
[3 * 12 + -1a * 12] = 24
[36 + -12a] = 24

Solving
36 + -12a = 24

Solving for variable 'a'.

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

Add '-36' to each side of the equation.
36 + -36 + -12a = 24 + -36

Combine like terms: 36 + -36 = 0
0 + -12a = 24 + -36
-12a = 24 + -36

Combine like terms: 24 + -36 = -12
-12a = -12

Divide each side by '-12'.
a = 1

Simplifying
a = 1

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