8+x+x=16

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Solution for 8+x+x=16 equation: 


Simplifying
8 + x + x = 16

Combine like terms: x + x = 2x
8 + 2x = 16

Solving
8 + 2x = 16

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 2x = 16 + -8

Combine like terms: 8 + -8 = 0
0 + 2x = 16 + -8
2x = 16 + -8

Combine like terms: 16 + -8 = 8
2x = 8

Divide each side by '2'.
x = 4

Simplifying
x = 4

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