x(x+1)=15-x(2-x)

Simple and best practice solution for x(x+1)=15-x(2-x) 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 x(x+1)=15-x(2-x) equation:


Simplifying
x(x + 1) = 15 + -1x(2 + -1x)

Reorder the terms:
x(1 + x) = 15 + -1x(2 + -1x)
(1 * x + x * x) = 15 + -1x(2 + -1x)
(1x + x2) = 15 + -1x(2 + -1x)
1x + x2 = 15 + (2 * -1x + -1x * -1x)
1x + x2 = 15 + (-2x + 1x2)

Solving
1x + x2 = 15 + -2x + 1x2

Solving for variable 'x'.

Reorder the terms:
-15 + 1x + 2x + x2 + -1x2 = 15 + -2x + 1x2 + -15 + 2x + -1x2

Combine like terms: 1x + 2x = 3x
-15 + 3x + x2 + -1x2 = 15 + -2x + 1x2 + -15 + 2x + -1x2

Combine like terms: x2 + -1x2 = 0
-15 + 3x + 0 = 15 + -2x + 1x2 + -15 + 2x + -1x2
-15 + 3x = 15 + -2x + 1x2 + -15 + 2x + -1x2

Reorder the terms:
-15 + 3x = 15 + -15 + -2x + 2x + 1x2 + -1x2

Combine like terms: 15 + -15 = 0
-15 + 3x = 0 + -2x + 2x + 1x2 + -1x2
-15 + 3x = -2x + 2x + 1x2 + -1x2

Combine like terms: -2x + 2x = 0
-15 + 3x = 0 + 1x2 + -1x2
-15 + 3x = 1x2 + -1x2

Combine like terms: 1x2 + -1x2 = 0
-15 + 3x = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-5 + x) = 0

Ignore the factor 3.

Subproblem 1

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

Solution

x = {5}

See similar equations:

| X^2-10x+2y+13=0 | | x/2=x-14 | | -8b+6b-8=2 | | 2(x+6)+4x=30 | | 3x/4-5/4=12 | | 180-76x+6x^2=0 | | 30-x=x*5 | | y/7.5=70 | | x*2=x+3 | | -1u+u= | | 5x+5y=37 | | 2+g=8 | | (3-X)(2b)=(4+X)(a) | | 9(x+3)+4x=53 | | -m+8=6 | | 60=5-x/7 | | 15+x=77-x | | 3/4(7/6x) | | x^3+5x^2-2x=0 | | 1024÷1/3 | | 3n/4=12 | | 2x^2+3x+a+1=0 | | 10n-0.375=0.1n-0.365 | | 8x+6+2x-4=4x+8 | | 9=81-45 | | y=2cos(4x)-2cos(2x) | | x-3y/2=5/2, | | 9x=441 | | Sin(45-x)=cos(45+x) | | 5(3x+1)+4(2x-3)=39 | | 3.5x-9-3=x+1 | | 4(2x+1)+3(7x+4)=103 |

Equations solver categories