A-(-1)=3

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


Simplifying
A + -1(-1) = 3

Multiply -1 * -1
A + 1 = 3

Reorder the terms:
1 + A = 3

Solving
1 + A = 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 + A = 3 + -1

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

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

Simplifying
A = 2

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