(2a+7)+(5-a)=0

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Solution for (2a+7)+(5-a)=0 equation:


Simplifying
(2a + 7) + (5 + -1a) = 0

Reorder the terms:
(7 + 2a) + (5 + -1a) = 0

Remove parenthesis around (7 + 2a)
7 + 2a + (5 + -1a) = 0

Remove parenthesis around (5 + -1a)
7 + 2a + 5 + -1a = 0

Reorder the terms:
7 + 5 + 2a + -1a = 0

Combine like terms: 7 + 5 = 12
12 + 2a + -1a = 0

Combine like terms: 2a + -1a = 1a
12 + 1a = 0

Solving
12 + 1a = 0

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 + 1a = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 1a = 0 + -12
1a = 0 + -12

Combine like terms: 0 + -12 = -12
1a = -12

Divide each side by '1'.
a = -12

Simplifying
a = -12

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