-A-1=-3

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Solution for -A-1=-3 equation: 


Simplifying
-1A + -1 = -3

Reorder the terms:
-1 + -1A = -3

Solving
-1 + -1A = -3

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 + -1A = -3 + 1

Combine like terms: -1 + 1 = 0
0 + -1A = -3 + 1
-1A = -3 + 1

Combine like terms: -3 + 1 = -2
-1A = -2

Divide each side by '-1'.
A = 2

Simplifying
A = 2

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