12[3+a]=48

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Solution for 12[3+a]=48 equation: 


Simplifying
12[3 + a] = 48
[3 * 12 + a * 12] = 48
[36 + 12a] = 48

Solving
36 + 12a = 48

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 = 48 + -36

Combine like terms: 36 + -36 = 0
0 + 12a = 48 + -36
12a = 48 + -36

Combine like terms: 48 + -36 = 12
12a = 12

Divide each side by '12'.
a = 1

Simplifying
a = 1

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