x+0.4x=3.5

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Solution for x+0.4x=3.5 equation: 


Simplifying
x + 0.4x = 3.5

Combine like terms: x + 0.4x = 1.4x
1.4x = 3.5

Solving
1.4x = 3.5

Solving for variable 'x'.

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

Divide each side by '1.4'.
x = 2.5

Simplifying
x = 2.5

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