7+(13+x)=

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Solution for 7+(13+x)= equation: 


Simplifying
7 + (13 + x) = 0

Remove parenthesis around (13 + x)
7 + 13 + x = 0

Combine like terms: 7 + 13 = 20
20 + x = 0

Solving
20 + x = 0

Solving for variable 'x'.

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

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

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

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

Simplifying
x = -20

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