a-(-12)=-17

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Solution for a-(-12)=-17 equation: 


Simplifying
a + -1(-12) = -17

Multiply -1 * -12
a + 12 = -17

Reorder the terms:
12 + a = -17

Solving
12 + a = -17

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + -12 + a = -17 + -12

Combine like terms: 12 + -12 = 0
0 + a = -17 + -12
a = -17 + -12

Combine like terms: -17 + -12 = -29
a = -29

Simplifying
a = -29

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