w(9-w)=20

Simple and best practice solution for w(9-w)=20 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 w(9-w)=20 equation:


Simplifying
w(9 + -1w) = 20
(9 * w + -1w * w) = 20
(9w + -1w2) = 20

Solving
9w + -1w2 = 20

Solving for variable 'w'.

Reorder the terms:
-20 + 9w + -1w2 = 20 + -20

Combine like terms: 20 + -20 = 0
-20 + 9w + -1w2 = 0

Factor a trinomial.
(-5 + w)(4 + -1w) = 0

Subproblem 1

Set the factor '(-5 + w)' equal to zero and attempt to solve: Simplifying -5 + w = 0 Solving -5 + w = 0 Move all terms containing w to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + w = 0 + 5 Combine like terms: -5 + 5 = 0 0 + w = 0 + 5 w = 0 + 5 Combine like terms: 0 + 5 = 5 w = 5 Simplifying w = 5

Subproblem 2

Set the factor '(4 + -1w)' equal to zero and attempt to solve: Simplifying 4 + -1w = 0 Solving 4 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1w = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1w = 0 + -4 -1w = 0 + -4 Combine like terms: 0 + -4 = -4 -1w = -4 Divide each side by '-1'. w = 4 Simplifying w = 4

Solution

w = {5, 4}

See similar equations:

| 8x^4-6x^2-10x=0 | | cos(x+7x)=0 | | (x-1)(x+3)=k(3x-2k+1) | | 4n-3(4-3n)+2(4n-4)+9(5n-2)= | | z^6-7z^3+12=0 | | 14x+2=3-2x | | 25x^2+20x+12=8 | | 2l=18-2w | | t^2-5t-28=0 | | X-(1/x)=0 | | x^2+38x=215 | | (4x+3)x(x^2-x-56)=0 | | 4x+35=29+2x | | 2x^2-59s+17=0 | | abs(6x)=abs(8x+1) | | -7.1m+9.1+11.4m=-8.3+4.3m+17.4 | | Y=1/2x-1/2 | | mn(m+n)=1 | | R^2-4r+2=32 | | 2/1/2=5n | | x^2-2/3x-3=0 | | 5x+8=x-28 | | 25w^2-5w+22=0 | | 0.07x+0.05y=2040 | | x+3x-20=500 | | 1.7x^2+x-1.5=0 | | -6(3C+5)=156 | | 43-17= | | 2m^2-21=11 | | 0.07+0.05=2040 | | M-5-6M= | | 3N+N=4N |

Equations solver categories