6.9-1.2y=3.9

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Solution for 6.9-1.2y=3.9 equation: 


Simplifying
6.9 + -1.2y = 3.9

Solving
6.9 + -1.2y = 3.9

Solving for variable 'y'.

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

Add '-6.9' to each side of the equation.
6.9 + -6.9 + -1.2y = 3.9 + -6.9

Combine like terms: 6.9 + -6.9 = 0.0
0.0 + -1.2y = 3.9 + -6.9
-1.2y = 3.9 + -6.9

Combine like terms: 3.9 + -6.9 = -3
-1.2y = -3

Divide each side by '-1.2'.
y = 2.5

Simplifying
y = 2.5

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