20+(s+7)+s=

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Solution for 20+(s+7)+s= equation:


Simplifying
20 + (s + 7) + s = 0

Reorder the terms:
20 + (7 + s) + s = 0

Remove parenthesis around (7 + s)
20 + 7 + s + s = 0

Combine like terms: 20 + 7 = 27
27 + s + s = 0

Combine like terms: s + s = 2s
27 + 2s = 0

Solving
27 + 2s = 0

Solving for variable 's'.

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

Add '-27' to each side of the equation.
27 + -27 + 2s = 0 + -27

Combine like terms: 27 + -27 = 0
0 + 2s = 0 + -27
2s = 0 + -27

Combine like terms: 0 + -27 = -27
2s = -27

Divide each side by '2'.
s = -13.5

Simplifying
s = -13.5

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