x+7x=400

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Solution for x+7x=400 equation: 


Simplifying
x + 7x = 400

Combine like terms: x + 7x = 8x
8x = 400

Solving
8x = 400

Solving for variable 'x'.

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

Divide each side by '8'.
x = 50

Simplifying
x = 50

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