4+a-2(a-6)=8

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Solution for 4+a-2(a-6)=8 equation:


Simplifying
4 + a + -2(a + -6) = 8

Reorder the terms:
4 + a + -2(-6 + a) = 8
4 + a + (-6 * -2 + a * -2) = 8
4 + a + (12 + -2a) = 8

Reorder the terms:
4 + 12 + a + -2a = 8

Combine like terms: 4 + 12 = 16
16 + a + -2a = 8

Combine like terms: a + -2a = -1a
16 + -1a = 8

Solving
16 + -1a = 8

Solving for variable 'a'.

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

Add '-16' to each side of the equation.
16 + -16 + -1a = 8 + -16

Combine like terms: 16 + -16 = 0
0 + -1a = 8 + -16
-1a = 8 + -16

Combine like terms: 8 + -16 = -8
-1a = -8

Divide each side by '-1'.
a = 8

Simplifying
a = 8

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