5x+2x+x=8

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Solution for 5x+2x+x=8 equation: 


Simplifying
5x + 2x + x = 8

Combine like terms: 5x + 2x = 7x
7x + x = 8

Combine like terms: 7x + x = 8x
8x = 8

Solving
8x = 8

Solving for variable 'x'.

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

Divide each side by '8'.
x = 1

Simplifying
x = 1

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