a-1=-6

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Solution for a-1=-6 equation: 


Simplifying
a + -1 = -6

Reorder the terms:
-1 + a = -6

Solving
-1 + a = -6

Solving for variable 'a'.

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

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

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

Combine like terms: -6 + 1 = -5
a = -5

Simplifying
a = -5

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