7y^2-6y+7=0

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Solution for 7y^2-6y+7=0 equation:


Simplifying
7y2 + -6y + 7 = 0

Reorder the terms:
7 + -6y + 7y2 = 0

Solving
7 + -6y + 7y2 = 0

Solving for variable 'y'.

Begin completing the square.  Divide all terms by
7 the coefficient of the squared term: 

Divide each side by '7'.
1 + -0.8571428571y + y2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -0.8571428571y + -1 + y2 = 0 + -1

Reorder the terms:
1 + -1 + -0.8571428571y + y2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -0.8571428571y + y2 = 0 + -1
-0.8571428571y + y2 = 0 + -1

Combine like terms: 0 + -1 = -1
-0.8571428571y + y2 = -1

The y term is -0.8571428571y.  Take half its coefficient (-0.4285714286).
Square it (0.1836734694) and add it to both sides.

Add '0.1836734694' to each side of the equation.
-0.8571428571y + 0.1836734694 + y2 = -1 + 0.1836734694

Reorder the terms:
0.1836734694 + -0.8571428571y + y2 = -1 + 0.1836734694

Combine like terms: -1 + 0.1836734694 = -0.8163265306
0.1836734694 + -0.8571428571y + y2 = -0.8163265306

Factor a perfect square on the left side:
(y + -0.4285714286)(y + -0.4285714286) = -0.8163265306

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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