y^2-5y-7=-4y-1

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Solution for y^2-5y-7=-4y-1 equation:


Simplifying
y2 + -5y + -7 = -4y + -1

Reorder the terms:
-7 + -5y + y2 = -4y + -1

Reorder the terms:
-7 + -5y + y2 = -1 + -4y

Solving
-7 + -5y + y2 = -1 + -4y

Solving for variable 'y'.

Reorder the terms:
-7 + 1 + -5y + 4y + y2 = -1 + -4y + 1 + 4y

Combine like terms: -7 + 1 = -6
-6 + -5y + 4y + y2 = -1 + -4y + 1 + 4y

Combine like terms: -5y + 4y = -1y
-6 + -1y + y2 = -1 + -4y + 1 + 4y

Reorder the terms:
-6 + -1y + y2 = -1 + 1 + -4y + 4y

Combine like terms: -1 + 1 = 0
-6 + -1y + y2 = 0 + -4y + 4y
-6 + -1y + y2 = -4y + 4y

Combine like terms: -4y + 4y = 0
-6 + -1y + y2 = 0

Factor a trinomial.
(-2 + -1y)(3 + -1y) = 0

Subproblem 1

Set the factor '(-2 + -1y)' equal to zero and attempt to solve: Simplifying -2 + -1y = 0 Solving -2 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1y = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1y = 0 + 2 -1y = 0 + 2 Combine like terms: 0 + 2 = 2 -1y = 2 Divide each side by '-1'. y = -2 Simplifying y = -2

Subproblem 2

Set the factor '(3 + -1y)' equal to zero and attempt to solve: Simplifying 3 + -1y = 0 Solving 3 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1y = 0 + -3 -1y = 0 + -3 Combine like terms: 0 + -3 = -3 -1y = -3 Divide each side by '-1'. y = 3 Simplifying y = 3

Solution

y = {-2, 3}

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