a-(-a-5)=7

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Solution for a-(-a-5)=7 equation:


Simplifying
a + -1(-1a + -5) = 7

Reorder the terms:
a + -1(-5 + -1a) = 7
a + (-5 * -1 + -1a * -1) = 7
a + (5 + 1a) = 7

Reorder the terms:
5 + a + 1a = 7

Combine like terms: a + 1a = 2a
5 + 2a = 7

Solving
5 + 2a = 7

Solving for variable 'a'.

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

Add '-5' to each side of the equation.
5 + -5 + 2a = 7 + -5

Combine like terms: 5 + -5 = 0
0 + 2a = 7 + -5
2a = 7 + -5

Combine like terms: 7 + -5 = 2
2a = 2

Divide each side by '2'.
a = 1

Simplifying
a = 1

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