6x^2=7-3x

Simple and best practice solution for 6x^2=7-3x 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 6x^2=7-3x equation:


Simplifying
6x2 = 7 + -3x

Solving
6x2 = 7 + -3x

Solving for variable 'x'.

Reorder the terms:
-7 + 3x + 6x2 = 7 + -3x + -7 + 3x

Reorder the terms:
-7 + 3x + 6x2 = 7 + -7 + -3x + 3x

Combine like terms: 7 + -7 = 0
-7 + 3x + 6x2 = 0 + -3x + 3x
-7 + 3x + 6x2 = -3x + 3x

Combine like terms: -3x + 3x = 0
-7 + 3x + 6x2 = 0

Begin completing the square.  Divide all terms by
6 the coefficient of the squared term: 

Divide each side by '6'.
-1.166666667 + 0.5x + x2 = 0

Move the constant term to the right:

Add '1.166666667' to each side of the equation.
-1.166666667 + 0.5x + 1.166666667 + x2 = 0 + 1.166666667

Reorder the terms:
-1.166666667 + 1.166666667 + 0.5x + x2 = 0 + 1.166666667

Combine like terms: -1.166666667 + 1.166666667 = 0.000000000
0.000000000 + 0.5x + x2 = 0 + 1.166666667
0.5x + x2 = 0 + 1.166666667

Combine like terms: 0 + 1.166666667 = 1.166666667
0.5x + x2 = 1.166666667

The x term is 0.5x.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5x + 0.0625 + x2 = 1.166666667 + 0.0625

Reorder the terms:
0.0625 + 0.5x + x2 = 1.166666667 + 0.0625

Combine like terms: 1.166666667 + 0.0625 = 1.229166667
0.0625 + 0.5x + x2 = 1.229166667

Factor a perfect square on the left side:
(x + 0.25)(x + 0.25) = 1.229166667

Calculate the square root of the right side: 1.108677891

Break this problem into two subproblems by setting 
(x + 0.25) equal to 1.108677891 and -1.108677891.

Subproblem 1

x + 0.25 = 1.108677891 Simplifying x + 0.25 = 1.108677891 Reorder the terms: 0.25 + x = 1.108677891 Solving 0.25 + x = 1.108677891 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = 1.108677891 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = 1.108677891 + -0.25 x = 1.108677891 + -0.25 Combine like terms: 1.108677891 + -0.25 = 0.858677891 x = 0.858677891 Simplifying x = 0.858677891

Subproblem 2

x + 0.25 = -1.108677891 Simplifying x + 0.25 = -1.108677891 Reorder the terms: 0.25 + x = -1.108677891 Solving 0.25 + x = -1.108677891 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = -1.108677891 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = -1.108677891 + -0.25 x = -1.108677891 + -0.25 Combine like terms: -1.108677891 + -0.25 = -1.358677891 x = -1.358677891 Simplifying x = -1.358677891

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.858677891, -1.358677891}

See similar equations:

| 3x^3+2x^2+7x+20=0 | | (t-9)(t+81)=0 | | 2/5x=-5 | | 7k^2-11k+4=0 | | x^4-5x^3+20x^2-100x=0 | | -9x-5=10x-7 | | -8-5y=27 | | (2x-18/7)/(4x-36/5)= | | 2x^2+10x+x=0 | | x+7y+z=8 | | 8+5(x+1)-2x=22 | | 18.6y=0 | | -x+6+7x=72 | | 5(x-525)= | | y^2+6y+5=(y+5)(y+n) | | 2(3)x-4=5 | | -10x+3=6x-4 | | (x-7)/3=-2 | | 7n+4=-6n-9 | | 3r=2+2b | | (X^2-1)^(2/3)=0 | | (X^2-1)^(2/3) | | 3x+12x=64 | | 8w+13=-19 | | 179*0.02= | | 12y-10y-7=33.64 | | -6-4x-x=-51 | | F(t)=-16t^2+576 | | x/11=-7x | | 6x-12=6x+12 | | -3/13x=-18.6 | | 5x+x+2.8= |

Equations solver categories