x+x-2=8

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Solution for x+x-2=8 equation: 


Simplifying
x + x + -2 = 8

Reorder the terms:
-2 + x + x = 8

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

Solving
-2 + 2x = 8

Solving for variable 'x'.

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

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

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

Combine like terms: 8 + 2 = 10
2x = 10

Divide each side by '2'.
x = 5

Simplifying
x = 5

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