7+x+13=9

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Solution for 7+x+13=9 equation: 


Simplifying
7 + x + 13 = 9

Reorder the terms:
7 + 13 + x = 9

Combine like terms: 7 + 13 = 20
20 + x = 9

Solving
20 + x = 9

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 = 9 + -20

Combine like terms: 20 + -20 = 0
0 + x = 9 + -20
x = 9 + -20

Combine like terms: 9 + -20 = -11
x = -11

Simplifying
x = -11

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