4[a+3]=48

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Solution for 4[a+3]=48 equation: 


Simplifying
4[a + 3] = 48

Reorder the terms:
4[3 + a] = 48
[3 * 4 + a * 4] = 48
[12 + 4a] = 48

Solving
12 + 4a = 48

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 + 4a = 48 + -12

Combine like terms: 12 + -12 = 0
0 + 4a = 48 + -12
4a = 48 + -12

Combine like terms: 48 + -12 = 36
4a = 36

Divide each side by '4'.
a = 9

Simplifying
a = 9

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