3.9+y=1.2

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Solution for 3.9+y=1.2 equation: 


Simplifying
3.9 + y = 1.2

Solving
3.9 + y = 1.2

Solving for variable 'y'.

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

Add '-3.9' to each side of the equation.
3.9 + -3.9 + y = 1.2 + -3.9

Combine like terms: 3.9 + -3.9 = 0.0
0.0 + y = 1.2 + -3.9
y = 1.2 + -3.9

Combine like terms: 1.2 + -3.9 = -2.7
y = -2.7

Simplifying
y = -2.7

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