900x=400+100x

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Solution for 900x=400+100x equation: 


Simplifying
900x = 400 + 100x

Solving
900x = 400 + 100x

Solving for variable 'x'.

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

Add '-100x' to each side of the equation.
900x + -100x = 400 + 100x + -100x

Combine like terms: 900x + -100x = 800x
800x = 400 + 100x + -100x

Combine like terms: 100x + -100x = 0
800x = 400 + 0
800x = 400

Divide each side by '800'.
x = 0.5

Simplifying
x = 0.5

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