1-6(a-1)=9+a

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Solution for 1-6(a-1)=9+a equation:


Simplifying
1 + -6(a + -1) = 9 + a

Reorder the terms:
1 + -6(-1 + a) = 9 + a
1 + (-1 * -6 + a * -6) = 9 + a
1 + (6 + -6a) = 9 + a

Combine like terms: 1 + 6 = 7
7 + -6a = 9 + a

Solving
7 + -6a = 9 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
7 + -6a + -1a = 9 + a + -1a

Combine like terms: -6a + -1a = -7a
7 + -7a = 9 + a + -1a

Combine like terms: a + -1a = 0
7 + -7a = 9 + 0
7 + -7a = 9

Add '-7' to each side of the equation.
7 + -7 + -7a = 9 + -7

Combine like terms: 7 + -7 = 0
0 + -7a = 9 + -7
-7a = 9 + -7

Combine like terms: 9 + -7 = 2
-7a = 2

Divide each side by '-7'.
a = -0.2857142857

Simplifying
a = -0.2857142857

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