-28-6a=-6-2(a-1)

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Solution for -28-6a=-6-2(a-1) equation:


Simplifying
-28 + -6a = -6 + -2(a + -1)

Reorder the terms:
-28 + -6a = -6 + -2(-1 + a)
-28 + -6a = -6 + (-1 * -2 + a * -2)
-28 + -6a = -6 + (2 + -2a)

Combine like terms: -6 + 2 = -4
-28 + -6a = -4 + -2a

Solving
-28 + -6a = -4 + -2a

Solving for variable 'a'.

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

Add '2a' to each side of the equation.
-28 + -6a + 2a = -4 + -2a + 2a

Combine like terms: -6a + 2a = -4a
-28 + -4a = -4 + -2a + 2a

Combine like terms: -2a + 2a = 0
-28 + -4a = -4 + 0
-28 + -4a = -4

Add '28' to each side of the equation.
-28 + 28 + -4a = -4 + 28

Combine like terms: -28 + 28 = 0
0 + -4a = -4 + 28
-4a = -4 + 28

Combine like terms: -4 + 28 = 24
-4a = 24

Divide each side by '-4'.
a = -6

Simplifying
a = -6

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