a-4[a-4(a-4)]=

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Solution for a-4[a-4(a-4)]= equation:


Simplifying
a + -4[a + -4(a + -4)] = 0

Reorder the terms:
a + -4[a + -4(-4 + a)] = 0
a + -4[a + (-4 * -4 + a * -4)] = 0
a + -4[a + (16 + -4a)] = 0

Reorder the terms:
a + -4[16 + a + -4a] = 0

Combine like terms: a + -4a = -3a
a + -4[16 + -3a] = 0
a + [16 * -4 + -3a * -4] = 0
a + [-64 + 12a] = 0

Reorder the terms:
-64 + a + 12a = 0

Combine like terms: a + 12a = 13a
-64 + 13a = 0

Solving
-64 + 13a = 0

Solving for variable 'a'.

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

Add '64' to each side of the equation.
-64 + 64 + 13a = 0 + 64

Combine like terms: -64 + 64 = 0
0 + 13a = 0 + 64
13a = 0 + 64

Combine like terms: 0 + 64 = 64
13a = 64

Divide each side by '13'.
a = 4.923076923

Simplifying
a = 4.923076923

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