s^2=30-11s

Simple and best practice solution for s^2=30-11s 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 s^2=30-11s equation:


Simplifying
s2 = 30 + -11s

Solving
s2 = 30 + -11s

Solving for variable 's'.

Reorder the terms:
-30 + 11s + s2 = 30 + -11s + -30 + 11s

Reorder the terms:
-30 + 11s + s2 = 30 + -30 + -11s + 11s

Combine like terms: 30 + -30 = 0
-30 + 11s + s2 = 0 + -11s + 11s
-30 + 11s + s2 = -11s + 11s

Combine like terms: -11s + 11s = 0
-30 + 11s + s2 = 0

Begin completing the square.

Move the constant term to the right:

Add '30' to each side of the equation.
-30 + 11s + 30 + s2 = 0 + 30

Reorder the terms:
-30 + 30 + 11s + s2 = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 11s + s2 = 0 + 30
11s + s2 = 0 + 30

Combine like terms: 0 + 30 = 30
11s + s2 = 30

The s term is 11s.  Take half its coefficient (5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
11s + 30.25 + s2 = 30 + 30.25

Reorder the terms:
30.25 + 11s + s2 = 30 + 30.25

Combine like terms: 30 + 30.25 = 60.25
30.25 + 11s + s2 = 60.25

Factor a perfect square on the left side:
(s + 5.5)(s + 5.5) = 60.25

Calculate the square root of the right side: 7.762087348

Break this problem into two subproblems by setting 
(s + 5.5) equal to 7.762087348 and -7.762087348.

Subproblem 1

s + 5.5 = 7.762087348 Simplifying s + 5.5 = 7.762087348 Reorder the terms: 5.5 + s = 7.762087348 Solving 5.5 + s = 7.762087348 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + s = 7.762087348 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + s = 7.762087348 + -5.5 s = 7.762087348 + -5.5 Combine like terms: 7.762087348 + -5.5 = 2.262087348 s = 2.262087348 Simplifying s = 2.262087348

Subproblem 2

s + 5.5 = -7.762087348 Simplifying s + 5.5 = -7.762087348 Reorder the terms: 5.5 + s = -7.762087348 Solving 5.5 + s = -7.762087348 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + s = -7.762087348 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + s = -7.762087348 + -5.5 s = -7.762087348 + -5.5 Combine like terms: -7.762087348 + -5.5 = -13.262087348 s = -13.262087348 Simplifying s = -13.262087348

Solution

The solution to the problem is based on the solutions from the subproblems. s = {2.262087348, -13.262087348}

See similar equations:

| -1.75s=0.02 | | 4x-12+3x+7+3x+7=22 | | -2(-9)-3(-19)= | | 3+9y=-13+5y | | x^2+y^2+z^2-2yz-4=0 | | 3x+38=13x-58 | | 10x=2x-14 | | 5-r+6r=10 | | 8=5n-4-n | | -4b-5b=0 | | 7=6x-1-2x | | a+4+4a=-11 | | 9=1+6x+2x | | 3=2a+3+4a | | a-1+6=4 | | 5n+3n=0 | | Y=5x^2+9x+4 | | -15=3n+5+n | | 15=2x+9 | | 6x^3-59x^2+120x+108=0 | | (1/4)^2x-3=8x | | 18-x=16.5 | | x+7.25=25.25 | | x^2-2px+2p+3=0 | | -0.5y=0.73 | | f(3)=2x^2+4x+10 | | 3000000=x+1.1x+1.1(1.1x)+1.1(1.1(1.1x)) | | 19-(x+9)=5x-8 | | sinx=x | | 2z=18-22 | | y=25.5-21 | | 2x5/7= |

Equations solver categories