a-(-3)=1

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


Simplifying
a + -1(-3) = 1

Multiply -1 * -3
a + 3 = 1

Reorder the terms:
3 + a = 1

Solving
3 + a = 1

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + a = 1 + -3

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

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

Simplifying
a = -2

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