x^2+6x=x+3

Simple and best practice solution for x^2+6x=x+3 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^2+6x=x+3 equation:


Simplifying
x2 + 6x = x + 3

Reorder the terms:
6x + x2 = x + 3

Reorder the terms:
6x + x2 = 3 + x

Solving
6x + x2 = 3 + x

Solving for variable 'x'.

Reorder the terms:
-3 + 6x + -1x + x2 = 3 + x + -3 + -1x

Combine like terms: 6x + -1x = 5x
-3 + 5x + x2 = 3 + x + -3 + -1x

Reorder the terms:
-3 + 5x + x2 = 3 + -3 + x + -1x

Combine like terms: 3 + -3 = 0
-3 + 5x + x2 = 0 + x + -1x
-3 + 5x + x2 = x + -1x

Combine like terms: x + -1x = 0
-3 + 5x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 5x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + 5x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 5x + x2 = 0 + 3
5x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
5x + x2 = 3

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = 3 + 6.25

Reorder the terms:
6.25 + 5x + x2 = 3 + 6.25

Combine like terms: 3 + 6.25 = 9.25
6.25 + 5x + x2 = 9.25

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 9.25

Calculate the square root of the right side: 3.041381265

Break this problem into two subproblems by setting 
(x + 2.5) equal to 3.041381265 and -3.041381265.

Subproblem 1

x + 2.5 = 3.041381265 Simplifying x + 2.5 = 3.041381265 Reorder the terms: 2.5 + x = 3.041381265 Solving 2.5 + x = 3.041381265 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 3.041381265 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 3.041381265 + -2.5 x = 3.041381265 + -2.5 Combine like terms: 3.041381265 + -2.5 = 0.541381265 x = 0.541381265 Simplifying x = 0.541381265

Subproblem 2

x + 2.5 = -3.041381265 Simplifying x + 2.5 = -3.041381265 Reorder the terms: 2.5 + x = -3.041381265 Solving 2.5 + x = -3.041381265 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -3.041381265 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -3.041381265 + -2.5 x = -3.041381265 + -2.5 Combine like terms: -3.041381265 + -2.5 = -5.541381265 x = -5.541381265 Simplifying x = -5.541381265

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.541381265, -5.541381265}

See similar equations:

| 5y-6=2y+10 | | (X+8)+x=6 | | 8+2(x-2)=8 | | 6s-2t+3+7s+5t-9= | | 5x+39= | | 37+w=5w-2 | | X=2y-550 | | 9x+15=(3x+5) | | (8+10)-10=2x | | 2x-5y=-24 | | (X+8)+x=8 | | 3(e+1)=2(e-5) | | 84x^3-84x^2+84x-84=0 | | -63=-7x-9y*-7 | | -43x-23=15-72x | | 3sinx-2=-3 | | 36x-108=36+36x | | 5g+6+7g-10= | | vsquared+6v-16=0 | | h-8=12 | | -2x+8=-1x+3 | | 2x+10-3=-2x-2+1 | | 16+24x=4 | | v+6v-16=0 | | 8x+16=450+6 | | 5(x+20)=500-5x | | 2y^2-9y+2=0 | | 4(x+1)-3(2x-5)=22 | | x=15*2.5 | | 2x+2=-(x-11) | | 3n+36=-12n-24 | | 3.25+.25x=25 |

Equations solver categories