Y+.8=3.9

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Solution for Y+.8=3.9 equation: 


Simplifying
Y + 0.8 = 3.9

Reorder the terms:
0.8 + Y = 3.9

Solving
0.8 + Y = 3.9

Solving for variable 'Y'.

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

Add '-0.8' to each side of the equation.
0.8 + -0.8 + Y = 3.9 + -0.8

Combine like terms: 0.8 + -0.8 = 0.0
0.0 + Y = 3.9 + -0.8
Y = 3.9 + -0.8

Combine like terms: 3.9 + -0.8 = 3.1
Y = 3.1

Simplifying
Y = 3.1

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