(a-10)+(a+10)=0

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Solution for (a-10)+(a+10)=0 equation:


Simplifying
(a + -10) + (a + 10) = 0

Reorder the terms:
(-10 + a) + (a + 10) = 0

Remove parenthesis around (-10 + a)
-10 + a + (a + 10) = 0

Reorder the terms:
-10 + a + (10 + a) = 0

Remove parenthesis around (10 + a)
-10 + a + 10 + a = 0

Reorder the terms:
-10 + 10 + a + a = 0

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

Combine like terms: a + a = 2a
2a = 0

Solving
2a = 0

Solving for variable 'a'.

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

Divide each side by '2'.
a = 0

Simplifying
a = 0

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