X+.9=6.4

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Solution for X+.9=6.4 equation: 


Simplifying
X + 0.9 = 6.4

Reorder the terms:
0.9 + X = 6.4

Solving
0.9 + X = 6.4

Solving for variable 'X'.

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

Add '-0.9' to each side of the equation.
0.9 + -0.9 + X = 6.4 + -0.9

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + X = 6.4 + -0.9
X = 6.4 + -0.9

Combine like terms: 6.4 + -0.9 = 5.5
X = 5.5

Simplifying
X = 5.5

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