(-9y-4y-5)+(7y^2+y)=

Simple and best practice solution for (-9y-4y-5)+(7y^2+y)= equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for (-9y-4y-5)+(7y^2+y)= equation:


Simplifying
(-9y + -4y + -5) + (7y2 + y) = 0

Reorder the terms:
(-5 + -9y + -4y) + (7y2 + y) = 0

Combine like terms: -9y + -4y = -13y
(-5 + -13y) + (7y2 + y) = 0

Remove parenthesis around (-5 + -13y)
-5 + -13y + (7y2 + y) = 0

Reorder the terms:
-5 + -13y + (y + 7y2) = 0

Remove parenthesis around (y + 7y2)
-5 + -13y + y + 7y2 = 0

Combine like terms: -13y + y = -12y
-5 + -12y + 7y2 = 0

Solving
-5 + -12y + 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'.
-0.7142857143 + -1.714285714y + y2 = 0

Move the constant term to the right:

Add '0.7142857143' to each side of the equation.
-0.7142857143 + -1.714285714y + 0.7142857143 + y2 = 0 + 0.7142857143

Reorder the terms:
-0.7142857143 + 0.7142857143 + -1.714285714y + y2 = 0 + 0.7142857143

Combine like terms: -0.7142857143 + 0.7142857143 = 0.0000000000
0.0000000000 + -1.714285714y + y2 = 0 + 0.7142857143
-1.714285714y + y2 = 0 + 0.7142857143

Combine like terms: 0 + 0.7142857143 = 0.7142857143
-1.714285714y + y2 = 0.7142857143

The y term is -1.714285714y.  Take half its coefficient (-0.857142857).
Square it (0.7346938773) and add it to both sides.

Add '0.7346938773' to each side of the equation.
-1.714285714y + 0.7346938773 + y2 = 0.7142857143 + 0.7346938773

Reorder the terms:
0.7346938773 + -1.714285714y + y2 = 0.7142857143 + 0.7346938773

Combine like terms: 0.7142857143 + 0.7346938773 = 1.4489795916
0.7346938773 + -1.714285714y + y2 = 1.4489795916

Factor a perfect square on the left side:
(y + -0.857142857)(y + -0.857142857) = 1.4489795916

Calculate the square root of the right side: 1.203735682

Break this problem into two subproblems by setting 
(y + -0.857142857) equal to 1.203735682 and -1.203735682.

Subproblem 1

y + -0.857142857 = 1.203735682 Simplifying y + -0.857142857 = 1.203735682 Reorder the terms: -0.857142857 + y = 1.203735682 Solving -0.857142857 + y = 1.203735682 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.857142857' to each side of the equation. -0.857142857 + 0.857142857 + y = 1.203735682 + 0.857142857 Combine like terms: -0.857142857 + 0.857142857 = 0.000000000 0.000000000 + y = 1.203735682 + 0.857142857 y = 1.203735682 + 0.857142857 Combine like terms: 1.203735682 + 0.857142857 = 2.060878539 y = 2.060878539 Simplifying y = 2.060878539

Subproblem 2

y + -0.857142857 = -1.203735682 Simplifying y + -0.857142857 = -1.203735682 Reorder the terms: -0.857142857 + y = -1.203735682 Solving -0.857142857 + y = -1.203735682 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.857142857' to each side of the equation. -0.857142857 + 0.857142857 + y = -1.203735682 + 0.857142857 Combine like terms: -0.857142857 + 0.857142857 = 0.000000000 0.000000000 + y = -1.203735682 + 0.857142857 y = -1.203735682 + 0.857142857 Combine like terms: -1.203735682 + 0.857142857 = -0.346592825 y = -0.346592825 Simplifying y = -0.346592825

Solution

The solution to the problem is based on the solutions from the subproblems. y = {2.060878539, -0.346592825}

See similar equations:

| (-6b^3-3b^2-6)+(2b^3-3b^3+9)= | | (-6b^3-3b-6)+(2b^3-3b^3+9)= | | -5(v-6)=4v-24 | | 30(p*p-1)=11p | | (-t^2-6t-3)+(-4t^2+2t)= | | (-5u-4b)+(-2u+7b-5)= | | y=3600-0.8 | | (x+8)(x-1)=(x+2)(x+2) | | -4+2x=5x-6 | | 7x-(6x+3)=4x-12 | | 54*19/27*3/4 | | 4b-3=3(b-1) | | 54*(19/27)*(3/4) | | 2(x-3)+4x=8X | | 1501+20x=1801 | | 5x-1.5=0 | | x/2+4x | | 5x^2+78x-83=0 | | 2x-8/x+5=35 | | (7w+1)(2w^2-3w-4)= | | (3u^2-4u+6)(5u^2-u+6)= | | X/5+4x+3(x-5) | | x+18=42+x-4 | | (y^2+5y+2)(6y-4)= | | (5u-6)(4u^2-u-2)= | | 5x+138=3x+120 | | 12x-7+3x-4=11x-2+3 | | (v^2-5v-3)(4v^2+6v+3)= | | 7-8a=4a-17 | | -32s/4-3s-22 | | -10v-3=3v^2 | | y+6=8(x-1) |

Equations solver categories