y^2+18=10y

Simple and best practice solution for y^2+18=10y 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 y^2+18=10y equation:


Simplifying
y2 + 18 = 10y

Reorder the terms:
18 + y2 = 10y

Solving
18 + y2 = 10y

Solving for variable 'y'.

Reorder the terms:
18 + -10y + y2 = 10y + -10y

Combine like terms: 10y + -10y = 0
18 + -10y + y2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-18' to each side of the equation.
18 + -10y + -18 + y2 = 0 + -18

Reorder the terms:
18 + -18 + -10y + y2 = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -10y + y2 = 0 + -18
-10y + y2 = 0 + -18

Combine like terms: 0 + -18 = -18
-10y + y2 = -18

The y term is -10y.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10y + 25 + y2 = -18 + 25

Reorder the terms:
25 + -10y + y2 = -18 + 25

Combine like terms: -18 + 25 = 7
25 + -10y + y2 = 7

Factor a perfect square on the left side:
(y + -5)(y + -5) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(y + -5) equal to 2.645751311 and -2.645751311.

Subproblem 1

y + -5 = 2.645751311 Simplifying y + -5 = 2.645751311 Reorder the terms: -5 + y = 2.645751311 Solving -5 + y = 2.645751311 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + y = 2.645751311 + 5 Combine like terms: -5 + 5 = 0 0 + y = 2.645751311 + 5 y = 2.645751311 + 5 Combine like terms: 2.645751311 + 5 = 7.645751311 y = 7.645751311 Simplifying y = 7.645751311

Subproblem 2

y + -5 = -2.645751311 Simplifying y + -5 = -2.645751311 Reorder the terms: -5 + y = -2.645751311 Solving -5 + y = -2.645751311 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + y = -2.645751311 + 5 Combine like terms: -5 + 5 = 0 0 + y = -2.645751311 + 5 y = -2.645751311 + 5 Combine like terms: -2.645751311 + 5 = 2.354248689 y = 2.354248689 Simplifying y = 2.354248689

Solution

The solution to the problem is based on the solutions from the subproblems. y = {7.645751311, 2.354248689}

See similar equations:

| (2*y^6)5= | | y=-5x^2+50 | | 36c^3+66c^2-210c=0 | | (4x-8)(7x+7)=0 | | -2m-9+m=27 | | 5x=9y-8 | | 6c-4c+5=9 | | 4z-5+2z=-30 | | 5x^2+22+8=0 | | 28x^2-5x+1=0 | | 7.6=-log(X) | | 25/4= | | x+3=4x-6 | | W=-9+4w | | x/4-6=18+1 | | (4a-3)(a+1)=a+33 | | y=3x^2+12x+9 | | 2x^2-13x=-20 | | 8x^2+14=15 | | x(x-2)-2(x+2)=x^2+4 | | -3(3y-7)+2y=14 | | 16t=15t+5 | | 9x-13x=20-12 | | -3x+2y=14 | | 10x^2+3x-18=0 | | 4x+7=56+31 | | 8-3k= | | -32=-8y | | (x+5)(x+1)=(x-1)(x+6) | | 4x^2+11=36 | | 0=-16t^2+32t+48 | | (y-5)6=(y+3)5 |

Equations solver categories