-85=-a-6(a+6)

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Solution for -85=-a-6(a+6) equation:


Simplifying
-85 = -1a + -6(a + 6)

Reorder the terms:
-85 = -1a + -6(6 + a)
-85 = -1a + (6 * -6 + a * -6)
-85 = -1a + (-36 + -6a)

Reorder the terms:
-85 = -36 + -1a + -6a

Combine like terms: -1a + -6a = -7a
-85 = -36 + -7a

Solving
-85 = -36 + -7a

Solving for variable 'a'.

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

Add '7a' to each side of the equation.
-85 + 7a = -36 + -7a + 7a

Combine like terms: -7a + 7a = 0
-85 + 7a = -36 + 0
-85 + 7a = -36

Add '85' to each side of the equation.
-85 + 85 + 7a = -36 + 85

Combine like terms: -85 + 85 = 0
0 + 7a = -36 + 85
7a = -36 + 85

Combine like terms: -36 + 85 = 49
7a = 49

Divide each side by '7'.
a = 7

Simplifying
a = 7

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