(10+a)+10=

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


Simplifying
(10 + a) + 10 = 0

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

Reorder the terms:
10 + 10 + a = 0

Combine like terms: 10 + 10 = 20
20 + a = 0

Solving
20 + a = 0

Solving for variable 'a'.

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

Add '-20' to each side of the equation.
20 + -20 + a = 0 + -20

Combine like terms: 20 + -20 = 0
0 + a = 0 + -20
a = 0 + -20

Combine like terms: 0 + -20 = -20
a = -20

Simplifying
a = -20

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