3a-[3a-3(a)]=

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Solution for 3a-[3a-3(a)]= equation: 


Simplifying
3a + -1[3a + -3(a)] = 0

Combine like terms: 3a + -3a = 0
3a + -1[0] = 0

Multiply -1 * 0
3a + 0 = 0

Anything times zero is zero.
3a + 0 = 0

Reorder the terms:
0 + 3a = 0
Remove the zero:
3a = 0

Solving
3a = 0

Solving for variable 'a'.

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

Divide each side by '3'.
a = 0

Simplifying
a = 0

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