-a-6=13

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Solution for -a-6=13 equation:


Simplifying
-1a + -6 = 13

Reorder the terms:
-6 + -1a = 13

Solving
-6 + -1a = 13

Solving for variable 'a'.

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

Add '6' to each side of the equation.
-6 + 6 + -1a = 13 + 6

Combine like terms: -6 + 6 = 0
0 + -1a = 13 + 6
-1a = 13 + 6

Combine like terms: 13 + 6 = 19
-1a = 19

Divide each side by '-1'.
a = -19

Simplifying
a = -19

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