(y^2+5)-3(4+y)=47

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Solution for (y^2+5)-3(4+y)=47 equation:


Simplifying
(y2 + 5) + -3(4 + y) = 47

Reorder the terms:
(5 + y2) + -3(4 + y) = 47

Remove parenthesis around (5 + y2)
5 + y2 + -3(4 + y) = 47
5 + y2 + (4 * -3 + y * -3) = 47
5 + y2 + (-12 + -3y) = 47

Reorder the terms:
5 + -12 + -3y + y2 = 47

Combine like terms: 5 + -12 = -7
-7 + -3y + y2 = 47

Solving
-7 + -3y + y2 = 47

Solving for variable 'y'.

Reorder the terms:
-7 + -47 + -3y + y2 = 47 + -47

Combine like terms: -7 + -47 = -54
-54 + -3y + y2 = 47 + -47

Combine like terms: 47 + -47 = 0
-54 + -3y + y2 = 0

Factor a trinomial.
(-6 + -1y)(9 + -1y) = 0

Subproblem 1

Set the factor '(-6 + -1y)' equal to zero and attempt to solve: Simplifying -6 + -1y = 0 Solving -6 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1y = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1y = 0 + 6 -1y = 0 + 6 Combine like terms: 0 + 6 = 6 -1y = 6 Divide each side by '-1'. y = -6 Simplifying y = -6

Subproblem 2

Set the factor '(9 + -1y)' equal to zero and attempt to solve: Simplifying 9 + -1y = 0 Solving 9 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1y = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1y = 0 + -9 -1y = 0 + -9 Combine like terms: 0 + -9 = -9 -1y = -9 Divide each side by '-1'. y = 9 Simplifying y = 9

Solution

y = {-6, 9}

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