x+0.21x=400

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Solution for x+0.21x=400 equation: 


Simplifying
x + 0.21x = 400

Combine like terms: x + 0.21x = 1.21x
1.21x = 400

Solving
1.21x = 400

Solving for variable 'x'.

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

Divide each side by '1.21'.
x = 330.5785124

Simplifying
x = 330.5785124

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