A-1-3=-1

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Solution for A-1-3=-1 equation: 


Simplifying
A + -1 + -3 = -1

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

Combine like terms: -1 + -3 = -4
-4 + A = -1

Solving
-4 + A = -1

Solving for variable 'A'.

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

Add '4' to each side of the equation.
-4 + 4 + A = -1 + 4

Combine like terms: -4 + 4 = 0
0 + A = -1 + 4
A = -1 + 4

Combine like terms: -1 + 4 = 3
A = 3

Simplifying
A = 3

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