-(-10+a)=-5

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Solution for -(-10+a)=-5 equation: 


Simplifying
-1(-10 + a) = -5
(-10 * -1 + a * -1) = -5
(10 + -1a) = -5

Solving
10 + -1a = -5

Solving for variable 'a'.

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

Add '-10' to each side of the equation.
10 + -10 + -1a = -5 + -10

Combine like terms: 10 + -10 = 0
0 + -1a = -5 + -10
-1a = -5 + -10

Combine like terms: -5 + -10 = -15
-1a = -15

Divide each side by '-1'.
a = 15

Simplifying
a = 15

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