a=30-(-12)

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Solution for a=30-(-12) equation: 


Simplifying
a = 30 + -1(-12)

Multiply -1 * -12
a = 30 + 12

Combine like terms: 30 + 12 = 42
a = 42

Solving
a = 42

Solving for variable 'a'.

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

Simplifying
a = 42

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