x+20x=90

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Solution for x+20x=90 equation: 


Simplifying
x + 20x = 90

Combine like terms: x + 20x = 21x
21x = 90

Solving
21x = 90

Solving for variable 'x'.

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

Divide each side by '21'.
x = 4.285714286

Simplifying
x = 4.285714286

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