7[4-2(a-2)]=7(2-4a)

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Solution for 7[4-2(a-2)]=7(2-4a) equation:


Simplifying
7[4 + -2(a + -2)] = 7(2 + -4a)

Reorder the terms:
7[4 + -2(-2 + a)] = 7(2 + -4a)
7[4 + (-2 * -2 + a * -2)] = 7(2 + -4a)
7[4 + (4 + -2a)] = 7(2 + -4a)

Combine like terms: 4 + 4 = 8
7[8 + -2a] = 7(2 + -4a)
[8 * 7 + -2a * 7] = 7(2 + -4a)
[56 + -14a] = 7(2 + -4a)
56 + -14a = (2 * 7 + -4a * 7)
56 + -14a = (14 + -28a)

Solving
56 + -14a = 14 + -28a

Solving for variable 'a'.

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

Add '28a' to each side of the equation.
56 + -14a + 28a = 14 + -28a + 28a

Combine like terms: -14a + 28a = 14a
56 + 14a = 14 + -28a + 28a

Combine like terms: -28a + 28a = 0
56 + 14a = 14 + 0
56 + 14a = 14

Add '-56' to each side of the equation.
56 + -56 + 14a = 14 + -56

Combine like terms: 56 + -56 = 0
0 + 14a = 14 + -56
14a = 14 + -56

Combine like terms: 14 + -56 = -42
14a = -42

Divide each side by '14'.
a = -3

Simplifying
a = -3

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