x+x-8=64

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Solution for x+x-8=64 equation: 


Simplifying
x + x + -8 = 64

Reorder the terms:
-8 + x + x = 64

Combine like terms: x + x = 2x
-8 + 2x = 64

Solving
-8 + 2x = 64

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 = 64 + 8

Combine like terms: -8 + 8 = 0
0 + 2x = 64 + 8
2x = 64 + 8

Combine like terms: 64 + 8 = 72
2x = 72

Divide each side by '2'.
x = 36

Simplifying
x = 36

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