a-(-3)=30

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Solution for a-(-3)=30 equation: 


Simplifying
a + -1(-3) = 30

Multiply -1 * -3
a + 3 = 30

Reorder the terms:
3 + a = 30

Solving
3 + a = 30

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 = 30 + -3

Combine like terms: 3 + -3 = 0
0 + a = 30 + -3
a = 30 + -3

Combine like terms: 30 + -3 = 27
a = 27

Simplifying
a = 27

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