4y=y^2+y+7

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Solution for 4y=y^2+y+7 equation:


Simplifying
4y = y2 + y + 7

Reorder the terms:
4y = 7 + y + y2

Solving
4y = 7 + y + y2

Solving for variable 'y'.

Reorder the terms:
-7 + 4y + -1y + -1y2 = 7 + y + y2 + -7 + -1y + -1y2

Combine like terms: 4y + -1y = 3y
-7 + 3y + -1y2 = 7 + y + y2 + -7 + -1y + -1y2

Reorder the terms:
-7 + 3y + -1y2 = 7 + -7 + y + -1y + y2 + -1y2

Combine like terms: 7 + -7 = 0
-7 + 3y + -1y2 = 0 + y + -1y + y2 + -1y2
-7 + 3y + -1y2 = y + -1y + y2 + -1y2

Combine like terms: y + -1y = 0
-7 + 3y + -1y2 = 0 + y2 + -1y2
-7 + 3y + -1y2 = y2 + -1y2

Combine like terms: y2 + -1y2 = 0
-7 + 3y + -1y2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
7 + -3y + y2 = 0

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + -3y + -7 + y2 = 0 + -7

Reorder the terms:
7 + -7 + -3y + y2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -3y + y2 = 0 + -7
-3y + y2 = 0 + -7

Combine like terms: 0 + -7 = -7
-3y + y2 = -7

The y term is -3y.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3y + 2.25 + y2 = -7 + 2.25

Reorder the terms:
2.25 + -3y + y2 = -7 + 2.25

Combine like terms: -7 + 2.25 = -4.75
2.25 + -3y + y2 = -4.75

Factor a perfect square on the left side:
(y + -1.5)(y + -1.5) = -4.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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