(-y^2)+6y=-7

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


Simplifying
(-1y2) + 6y = -7

Reorder the terms:
6y + (-1y2) = -7

Solving
6y + (-1y2) = -7

Solving for variable 'y'.

Reorder the terms:
7 + 6y + (-1y2) = -7 + 7

Combine like terms: -7 + 7 = 0
7 + 6y + (-1y2) = 0

Factor a trinomial.
(7 + -1y)(1 + y) = 0

Subproblem 1

Set the factor '(7 + -1y)' equal to zero and attempt to solve: Simplifying 7 + -1y = 0 Solving 7 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1y = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1y = 0 + -7 -1y = 0 + -7 Combine like terms: 0 + -7 = -7 -1y = -7 Divide each side by '-1'. y = 7 Simplifying y = 7

Subproblem 2

Set the factor '(1 + y)' equal to zero and attempt to solve: Simplifying 1 + y = 0 Solving 1 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + y = 0 + -1 Combine like terms: 1 + -1 = 0 0 + y = 0 + -1 y = 0 + -1 Combine like terms: 0 + -1 = -1 y = -1 Simplifying y = -1

Solution

y = {7, -1}

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