a-1=2(a-6)

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


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

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

Reorder the terms:
-1 + a = 2(-6 + a)
-1 + a = (-6 * 2 + a * 2)
-1 + a = (-12 + 2a)

Solving
-1 + a = -12 + 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.
-1 + a + -2a = -12 + 2a + -2a

Combine like terms: a + -2a = -1a
-1 + -1a = -12 + 2a + -2a

Combine like terms: 2a + -2a = 0
-1 + -1a = -12 + 0
-1 + -1a = -12

Add '1' to each side of the equation.
-1 + 1 + -1a = -12 + 1

Combine like terms: -1 + 1 = 0
0 + -1a = -12 + 1
-1a = -12 + 1

Combine like terms: -12 + 1 = -11
-1a = -11

Divide each side by '-1'.
a = 11

Simplifying
a = 11

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