9y^2+22=30y

Simple and best practice solution for 9y^2+22=30y 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^2+22=30y equation:


Simplifying
9y2 + 22 = 30y

Reorder the terms:
22 + 9y2 = 30y

Solving
22 + 9y2 = 30y

Solving for variable 'y'.

Reorder the terms:
22 + -30y + 9y2 = 30y + -30y

Combine like terms: 30y + -30y = 0
22 + -30y + 9y2 = 0

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

Divide each side by '9'.
2.444444444 + -3.333333333y + y2 = 0

Move the constant term to the right:

Add '-2.444444444' to each side of the equation.
2.444444444 + -3.333333333y + -2.444444444 + y2 = 0 + -2.444444444

Reorder the terms:
2.444444444 + -2.444444444 + -3.333333333y + y2 = 0 + -2.444444444

Combine like terms: 2.444444444 + -2.444444444 = 0.000000000
0.000000000 + -3.333333333y + y2 = 0 + -2.444444444
-3.333333333y + y2 = 0 + -2.444444444

Combine like terms: 0 + -2.444444444 = -2.444444444
-3.333333333y + y2 = -2.444444444

The y term is -3.333333333y.  Take half its coefficient (-1.666666667).
Square it (2.777777779) and add it to both sides.

Add '2.777777779' to each side of the equation.
-3.333333333y + 2.777777779 + y2 = -2.444444444 + 2.777777779

Reorder the terms:
2.777777779 + -3.333333333y + y2 = -2.444444444 + 2.777777779

Combine like terms: -2.444444444 + 2.777777779 = 0.333333335
2.777777779 + -3.333333333y + y2 = 0.333333335

Factor a perfect square on the left side:
(y + -1.666666667)(y + -1.666666667) = 0.333333335

Calculate the square root of the right side: 0.577350271

Break this problem into two subproblems by setting 
(y + -1.666666667) equal to 0.577350271 and -0.577350271.

Subproblem 1

y + -1.666666667 = 0.577350271 Simplifying y + -1.666666667 = 0.577350271 Reorder the terms: -1.666666667 + y = 0.577350271 Solving -1.666666667 + y = 0.577350271 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.666666667' to each side of the equation. -1.666666667 + 1.666666667 + y = 0.577350271 + 1.666666667 Combine like terms: -1.666666667 + 1.666666667 = 0.000000000 0.000000000 + y = 0.577350271 + 1.666666667 y = 0.577350271 + 1.666666667 Combine like terms: 0.577350271 + 1.666666667 = 2.244016938 y = 2.244016938 Simplifying y = 2.244016938

Subproblem 2

y + -1.666666667 = -0.577350271 Simplifying y + -1.666666667 = -0.577350271 Reorder the terms: -1.666666667 + y = -0.577350271 Solving -1.666666667 + y = -0.577350271 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.666666667' to each side of the equation. -1.666666667 + 1.666666667 + y = -0.577350271 + 1.666666667 Combine like terms: -1.666666667 + 1.666666667 = 0.000000000 0.000000000 + y = -0.577350271 + 1.666666667 y = -0.577350271 + 1.666666667 Combine like terms: -0.577350271 + 1.666666667 = 1.089316396 y = 1.089316396 Simplifying y = 1.089316396

Solution

The solution to the problem is based on the solutions from the subproblems. y = {2.244016938, 1.089316396}

See similar equations:

| 5(m-12)-3(7m-14)=2 | | 4.5(x+52)=23 | | (1/3)9³ | | 47262*47273=x | | 180=x+3x-20 | | 6x+10+5x=65 | | 8-4/7x=16 | | 0=3v-4 | | 5x+2=4.89897949 | | .07x+.05(1000-x)=65 | | -5(6-5m)=145 | | x-8=-44 | | 63524*1526=x | | 4x+2x+x=2+6 | | 4x^2-9x-18=0 | | 4n+3(2+8n)=90 | | -4(8v-7)=92 | | 24x^6-9x9/3x^6 | | 4(-6x+5)=-172 | | -3c+1=27 | | 7-4w=10 | | 4.35+32=5.75x-17 | | 7+5(6x+7)=192 | | -0.2x+9.66=-0.4x+3.66 | | 11y+2+19x=360 | | 4(3x+7)=-45+1 | | 2x-5(7x+45)=6 | | -8(7+6b)=136 | | 4x/.01=200/3 | | 4m+3n-2m+7n= | | -n+2(1-8n)=-100 | | 32a+4= |

Equations solver categories